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Finding the Fourth Proportional to 539,613.76, 744,647.43 and 297,891.13

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Solution

The fourth proportional to 539,613.76, 744,647.43 and 297,891.13 is: 411,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,613.76 : 744,647.43 = 297,891.13 : x
  2. Step 2: Convert to fraction form
    539,613.76/744,647.43 = 297,891.13/x
  3. Step 3: Cross multiply
    539,613.76x = 744,647.43 × 297,891.13
  4. Step 4: Simplify right side
    539,613.76x = 221,823,864,374.30
  5. Step 5: Solve for x
    x = 221,823,864,374.30/539,613.76
  6. Step 6: Final answer
    x = 411,078.96

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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.