Home / 728,275,489.70-1,092,413,234.55-644,095,235.30

Finding the Fourth Proportional to 728,275,489.70, 1,092,413,234.55 and 644,095,235.30

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Solution

The fourth proportional to 728,275,489.70, 1,092,413,234.55 and 644,095,235.30 is: 966,142,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,489.70 : 1,092,413,234.55 = 644,095,235.30 : x
  2. Step 2: Convert to fraction form
    728,275,489.70/1,092,413,234.55 = 644,095,235.30/x
  3. Step 3: Cross multiply
    728,275,489.70x = 1,092,413,234.55 × 644,095,235.30
  4. Step 4: Simplify right side
    728,275,489.70x = 703,618,159,352,316,288
  5. Step 5: Solve for x
    x = 703,618,159,352,316,288/728,275,489.70
  6. Step 6: Final answer
    x = 966,142,852.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.