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Finding the Fourth Proportional to 510,001.72, 703,819.43 and 280,585.42

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Solution

The fourth proportional to 510,001.72, 703,819.43 and 280,585.42 is: 387,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,001.72 : 703,819.43 = 280,585.42 : x
  2. Step 2: Convert to fraction form
    510,001.72/703,819.43 = 280,585.42/x
  3. Step 3: Cross multiply
    510,001.72x = 703,819.43 × 280,585.42
  4. Step 4: Simplify right side
    510,001.72x = 197,481,468,260.43
  5. Step 5: Solve for x
    x = 197,481,468,260.43/510,001.72
  6. Step 6: Final answer
    x = 387,217.26

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1.5x scale

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.