Home / 656,306.10-984,490.42-318,944.82

Finding the Fourth Proportional to 656,306.10, 984,490.42 and 318,944.82

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Solution

The fourth proportional to 656,306.10, 984,490.42 and 318,944.82 is: 478,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,306.10 : 984,490.42 = 318,944.82 : x
  2. Step 2: Convert to fraction form
    656,306.10/984,490.42 = 318,944.82/x
  3. Step 3: Cross multiply
    656,306.10x = 984,490.42 × 318,944.82
  4. Step 4: Simplify right side
    656,306.10x = 313,998,119,798.62
  5. Step 5: Solve for x
    x = 313,998,119,798.62/656,306.10
  6. Step 6: Final answer
    x = 478,432.43

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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.