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Finding the Fourth Proportional to 624,337.38, 861,624.60 and 352,451.34

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Solution

The fourth proportional to 624,337.38, 861,624.60 and 352,451.34 is: 486,404.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,337.38 : 861,624.60 = 352,451.34 : x
  2. Step 2: Convert to fraction form
    624,337.38/861,624.60 = 352,451.34/x
  3. Step 3: Cross multiply
    624,337.38x = 861,624.60 × 352,451.34
  4. Step 4: Simplify right side
    624,337.38x = 303,680,744,846.96
  5. Step 5: Solve for x
    x = 303,680,744,846.96/624,337.38
  6. Step 6: Final answer
    x = 486,404.87

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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.