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Finding the Fourth Proportional to 650,471.20, 975,706.80 and 384,359.20

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Solution

The fourth proportional to 650,471.20, 975,706.80 and 384,359.20 is: 576,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,471.20 : 975,706.80 = 384,359.20 : x
  2. Step 2: Convert to fraction form
    650,471.20/975,706.80 = 384,359.20/x
  3. Step 3: Cross multiply
    650,471.20x = 975,706.80 × 384,359.20
  4. Step 4: Simplify right side
    650,471.20x = 375,021,885,082.56
  5. Step 5: Solve for x
    x = 375,021,885,082.56/650,471.20
  6. Step 6: Final answer
    x = 576,538.80

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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.