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Finding the Fourth Proportional to 659,446.60, 988,838.70 and 322,512.52

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Solution

The fourth proportional to 659,446.60, 988,838.70 and 322,512.52 is: 483,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,446.60 : 988,838.70 = 322,512.52 : x
  2. Step 2: Convert to fraction form
    659,446.60/988,838.70 = 322,512.52/x
  3. Step 3: Cross multiply
    659,446.60x = 988,838.70 × 322,512.52
  4. Step 4: Simplify right side
    659,446.60x = 318,912,861,010.52
  5. Step 5: Solve for x
    x = 318,912,861,010.52/659,446.60
  6. Step 6: Final answer
    x = 483,606.80

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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.