Home / 749,287.80-1,123,931.70-741,414.60

Finding the Fourth Proportional to 749,287.80, 1,123,931.70 and 741,414.60

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Solution

The fourth proportional to 749,287.80, 1,123,931.70 and 741,414.60 is: 1,112,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,287.80 : 1,123,931.70 = 741,414.60 : x
  2. Step 2: Convert to fraction form
    749,287.80/1,123,931.70 = 741,414.60/x
  3. Step 3: Cross multiply
    749,287.80x = 1,123,931.70 × 741,414.60
  4. Step 4: Simplify right side
    749,287.80x = 833,299,371,782.82
  5. Step 5: Solve for x
    x = 833,299,371,782.82/749,287.80
  6. Step 6: Final answer
    x = 1,112,121.90

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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.