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Finding the Fourth Proportional to 437,474.20, 656,211.30 and 279,232.60

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Solution

The fourth proportional to 437,474.20, 656,211.30 and 279,232.60 is: 418,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,474.20 : 656,211.30 = 279,232.60 : x
  2. Step 2: Convert to fraction form
    437,474.20/656,211.30 = 279,232.60/x
  3. Step 3: Cross multiply
    437,474.20x = 656,211.30 × 279,232.60
  4. Step 4: Simplify right side
    437,474.20x = 183,235,587,448.38
  5. Step 5: Solve for x
    x = 183,235,587,448.38/437,474.20
  6. Step 6: Final answer
    x = 418,848.90

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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.