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Finding the Fourth Proportional to 437,536.40, 656,304.60 and 331,248.20

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Solution

The fourth proportional to 437,536.40, 656,304.60 and 331,248.20 is: 496,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,536.40 : 656,304.60 = 331,248.20 : x
  2. Step 2: Convert to fraction form
    437,536.40/656,304.60 = 331,248.20/x
  3. Step 3: Cross multiply
    437,536.40x = 656,304.60 × 331,248.20
  4. Step 4: Simplify right side
    437,536.40x = 217,399,717,401.72
  5. Step 5: Solve for x
    x = 217,399,717,401.72/437,536.40
  6. Step 6: Final answer
    x = 496,872.30

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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.