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Finding the Fourth Proportional to 539,505.72, 744,530.40 and 297,792

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Solution

The fourth proportional to 539,505.72, 744,530.40 and 297,792 is: 410,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,505.72 : 744,530.40 = 297,792 : x
  2. Step 2: Convert to fraction form
    539,505.72/744,530.40 = 297,792/x
  3. Step 3: Cross multiply
    539,505.72x = 744,530.40 × 297,792
  4. Step 4: Simplify right side
    539,505.72x = 221,715,196,876.80
  5. Step 5: Solve for x
    x = 221,715,196,876.80/539,505.72
  6. Step 6: Final answer
    x = 410,959.86

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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.