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Finding the Fourth Proportional to 539,638.83, 744,697.08 and 297,916.23

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Solution

The fourth proportional to 539,638.83, 744,697.08 and 297,916.23 is: 411,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,638.83 : 744,697.08 = 297,916.23 : x
  2. Step 2: Convert to fraction form
    539,638.83/744,697.08 = 297,916.23/x
  3. Step 3: Cross multiply
    539,638.83x = 744,697.08 × 297,916.23
  4. Step 4: Simplify right side
    539,638.83x = 221,857,346,565.61
  5. Step 5: Solve for x
    x = 221,857,346,565.61/539,638.83
  6. Step 6: Final answer
    x = 411,121.91

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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.