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Finding the Fourth Proportional to 539,663.85, 744,721.29 and 297,942.03

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Solution

The fourth proportional to 539,663.85, 744,721.29 and 297,942.03 is: 411,151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,663.85 : 744,721.29 = 297,942.03 : x
  2. Step 2: Convert to fraction form
    539,663.85/744,721.29 = 297,942.03/x
  3. Step 3: Cross multiply
    539,663.85x = 744,721.29 × 297,942.03
  4. Step 4: Simplify right side
    539,663.85x = 221,883,772,926.82
  5. Step 5: Solve for x
    x = 221,883,772,926.82/539,663.85
  6. Step 6: Final answer
    x = 411,151.82

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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.