Home / 437,566.40-656,349.60-331,278.20

Finding the Fourth Proportional to 437,566.40, 656,349.60 and 331,278.20

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Solution

The fourth proportional to 437,566.40, 656,349.60 and 331,278.20 is: 496,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,566.40 : 656,349.60 = 331,278.20 : x
  2. Step 2: Convert to fraction form
    437,566.40/656,349.60 = 331,278.20/x
  3. Step 3: Cross multiply
    437,566.40x = 656,349.60 × 331,278.20
  4. Step 4: Simplify right side
    437,566.40x = 217,434,314,058.72
  5. Step 5: Solve for x
    x = 217,434,314,058.72/437,566.40
  6. Step 6: Final answer
    x = 496,917.30

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Double scale
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Similar ratio
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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.