Home / 748,706.28-1,123,584.30-432,728.52

Finding the Fourth Proportional to 748,706.28, 1,123,584.30 and 432,728.52

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Solution

The fourth proportional to 748,706.28, 1,123,584.30 and 432,728.52 is: 649,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,706.28 : 1,123,584.30 = 432,728.52 : x
  2. Step 2: Convert to fraction form
    748,706.28/1,123,584.30 = 432,728.52/x
  3. Step 3: Cross multiply
    748,706.28x = 1,123,584.30 × 432,728.52
  4. Step 4: Simplify right side
    748,706.28x = 486,206,971,234.24
  5. Step 5: Solve for x
    x = 486,206,971,234.24/748,706.28
  6. Step 6: Final answer
    x = 649,396.14

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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.