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Finding the Fourth Proportional to 615,475.20, 923,212.80 and 482,764.80

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Solution

The fourth proportional to 615,475.20, 923,212.80 and 482,764.80 is: 724,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,475.20 : 923,212.80 = 482,764.80 : x
  2. Step 2: Convert to fraction form
    615,475.20/923,212.80 = 482,764.80/x
  3. Step 3: Cross multiply
    615,475.20x = 923,212.80 × 482,764.80
  4. Step 4: Simplify right side
    615,475.20x = 445,694,642,749.44
  5. Step 5: Solve for x
    x = 445,694,642,749.44/615,475.20
  6. Step 6: Final answer
    x = 724,147.20

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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.