Home / 728,423.10-1,092,634.65-448,098.30

Finding the Fourth Proportional to 728,423.10, 1,092,634.65 and 448,098.30

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Solution

The fourth proportional to 728,423.10, 1,092,634.65 and 448,098.30 is: 672,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,423.10 : 1,092,634.65 = 448,098.30 : x
  2. Step 2: Convert to fraction form
    728,423.10/1,092,634.65 = 448,098.30/x
  3. Step 3: Cross multiply
    728,423.10x = 1,092,634.65 × 448,098.30
  4. Step 4: Simplify right side
    728,423.10x = 489,607,729,186.10
  5. Step 5: Solve for x
    x = 489,607,729,186.10/728,423.10
  6. Step 6: Final answer
    x = 672,147.45

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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.