Home / 747,488.40-1,121,013.90-267,660.60

Finding the Fourth Proportional to 747,488.40, 1,121,013.90 and 267,660.60

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Solution

The fourth proportional to 747,488.40, 1,121,013.90 and 267,660.60 is: 401,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,488.40 : 1,121,013.90 = 267,660.60 : x
  2. Step 2: Convert to fraction form
    747,488.40/1,121,013.90 = 267,660.60/x
  3. Step 3: Cross multiply
    747,488.40x = 1,121,013.90 × 267,660.60
  4. Step 4: Simplify right side
    747,488.40x = 300,051,253,082.34
  5. Step 5: Solve for x
    x = 300,051,253,082.34/747,488.40
  6. Step 6: Final answer
    x = 401,412.59

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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.