Home / 728,295.15-1,005,051.59-422,553.56

Finding the Fourth Proportional to 728,295.15, 1,005,051.59 and 422,553.56

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Solution

The fourth proportional to 728,295.15, 1,005,051.59 and 422,553.56 is: 583,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,295.15 : 1,005,051.59 = 422,553.56 : x
  2. Step 2: Convert to fraction form
    728,295.15/1,005,051.59 = 422,553.56/x
  3. Step 3: Cross multiply
    728,295.15x = 1,005,051.59 × 422,553.56
  4. Step 4: Simplify right side
    728,295.15x = 424,688,129,814.99
  5. Step 5: Solve for x
    x = 424,688,129,814.99/728,295.15
  6. Step 6: Final answer
    x = 583,126.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.