Home / 748,736.28-1,123,629.30-432,758.52

Finding the Fourth Proportional to 748,736.28, 1,123,629.30 and 432,758.52

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Solution

The fourth proportional to 748,736.28, 1,123,629.30 and 432,758.52 is: 649,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,736.28 : 1,123,629.30 = 432,758.52 : x
  2. Step 2: Convert to fraction form
    748,736.28/1,123,629.30 = 432,758.52/x
  3. Step 3: Cross multiply
    748,736.28x = 1,123,629.30 × 432,758.52
  4. Step 4: Simplify right side
    748,736.28x = 486,260,152,896.64
  5. Step 5: Solve for x
    x = 486,260,152,896.64/748,736.28
  6. Step 6: Final answer
    x = 649,441.15

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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.