Home / 748,500.60-1,123,455.60-393,769.20

Finding the Fourth Proportional to 748,500.60, 1,123,455.60 and 393,769.20

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Solution

The fourth proportional to 748,500.60, 1,123,455.60 and 393,769.20 is: 591,024.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,500.60 : 1,123,455.60 = 393,769.20 : x
  2. Step 2: Convert to fraction form
    748,500.60/1,123,455.60 = 393,769.20/x
  3. Step 3: Cross multiply
    748,500.60x = 1,123,455.60 × 393,769.20
  4. Step 4: Simplify right side
    748,500.60x = 442,382,212,847.52
  5. Step 5: Solve for x
    x = 442,382,212,847.52/748,500.60
  6. Step 6: Final answer
    x = 591,024.53

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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.