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Finding the Fourth Proportional to 616,126.83, 924,403.47 and 440,007.72

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Solution

The fourth proportional to 616,126.83, 924,403.47 and 440,007.72 is: 660,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,126.83 : 924,403.47 = 440,007.72 : x
  2. Step 2: Convert to fraction form
    616,126.83/924,403.47 = 440,007.72/x
  3. Step 3: Cross multiply
    616,126.83x = 924,403.47 × 440,007.72
  4. Step 4: Simplify right side
    616,126.83x = 406,744,663,194.79
  5. Step 5: Solve for x
    x = 406,744,663,194.79/616,126.83
  6. Step 6: Final answer
    x = 660,163.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.