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Finding the Fourth Proportional to 437,613.91, 603,781.23 and 284,876.89

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Solution

The fourth proportional to 437,613.91, 603,781.23 and 284,876.89 is: 393,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,613.91 : 603,781.23 = 284,876.89 : x
  2. Step 2: Convert to fraction form
    437,613.91/603,781.23 = 284,876.89/x
  3. Step 3: Cross multiply
    437,613.91x = 603,781.23 × 284,876.89
  4. Step 4: Simplify right side
    437,613.91x = 172,003,319,042.78
  5. Step 5: Solve for x
    x = 172,003,319,042.78/437,613.91
  6. Step 6: Final answer
    x = 393,048.11

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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.