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Finding the Fourth Proportional to 656,342.79, 984,504.42 and 400,250.62

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Solution

The fourth proportional to 656,342.79, 984,504.42 and 400,250.62 is: 600,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,342.79 : 984,504.42 = 400,250.62 : x
  2. Step 2: Convert to fraction form
    656,342.79/984,504.42 = 400,250.62/x
  3. Step 3: Cross multiply
    656,342.79x = 984,504.42 × 400,250.62
  4. Step 4: Simplify right side
    656,342.79x = 394,048,499,909.13
  5. Step 5: Solve for x
    x = 394,048,499,909.13/656,342.79
  6. Step 6: Final answer
    x = 600,369.97

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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.