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Finding the Fourth Proportional to 539,511.10, 744,472.33 and 297,778.10

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Solution

The fourth proportional to 539,511.10, 744,472.33 and 297,778.10 is: 410,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,511.10 : 744,472.33 = 297,778.10 : x
  2. Step 2: Convert to fraction form
    539,511.10/744,472.33 = 297,778.10/x
  3. Step 3: Cross multiply
    539,511.10x = 744,472.33 × 297,778.10
  4. Step 4: Simplify right side
    539,511.10x = 221,687,555,929.97
  5. Step 5: Solve for x
    x = 221,687,555,929.97/539,511.10
  6. Step 6: Final answer
    x = 410,904.53

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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.