Home / 437,555.40-656,333.10-331,267.20

Finding the Fourth Proportional to 437,555.40, 656,333.10 and 331,267.20

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Solution

The fourth proportional to 437,555.40, 656,333.10 and 331,267.20 is: 496,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,555.40 : 656,333.10 = 331,267.20 : x
  2. Step 2: Convert to fraction form
    437,555.40/656,333.10 = 331,267.20/x
  3. Step 3: Cross multiply
    437,555.40x = 656,333.10 × 331,267.20
  4. Step 4: Simplify right side
    437,555.40x = 217,421,628,304.32
  5. Step 5: Solve for x
    x = 217,421,628,304.32/437,555.40
  6. Step 6: Final answer
    x = 496,900.80

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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.