Home / 750,520.38-1,123,862.39-413,190.21

Finding the Fourth Proportional to 750,520.38, 1,123,862.39 and 413,190.21

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Solution

The fourth proportional to 750,520.38, 1,123,862.39 and 413,190.21 is: 618,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,520.38 : 1,123,862.39 = 413,190.21 : x
  2. Step 2: Convert to fraction form
    750,520.38/1,123,862.39 = 413,190.21/x
  3. Step 3: Cross multiply
    750,520.38x = 1,123,862.39 × 413,190.21
  4. Step 4: Simplify right side
    750,520.38x = 464,368,942,957.39
  5. Step 5: Solve for x
    x = 464,368,942,957.39/750,520.38
  6. Step 6: Final answer
    x = 618,729.29

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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.