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Finding the Fourth Proportional to 656,446.91, 984,670.59 and 207,213.21

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Solution

The fourth proportional to 656,446.91, 984,670.59 and 207,213.21 is: 310,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,446.91 : 984,670.59 = 207,213.21 : x
  2. Step 2: Convert to fraction form
    656,446.91/984,670.59 = 207,213.21/x
  3. Step 3: Cross multiply
    656,446.91x = 984,670.59 × 207,213.21
  4. Step 4: Simplify right side
    656,446.91x = 204,036,753,746.49
  5. Step 5: Solve for x
    x = 204,036,753,746.49/656,446.91
  6. Step 6: Final answer
    x = 310,819.89

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Similar ratio
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1.5x scale

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.