Home / 747,537.30-1,121,123.70-215,002.80

Finding the Fourth Proportional to 747,537.30, 1,121,123.70 and 215,002.80

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Solution

The fourth proportional to 747,537.30, 1,121,123.70 and 215,002.80 is: 322,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,537.30 : 1,121,123.70 = 215,002.80 : x
  2. Step 2: Convert to fraction form
    747,537.30/1,121,123.70 = 215,002.80/x
  3. Step 3: Cross multiply
    747,537.30x = 1,121,123.70 × 215,002.80
  4. Step 4: Simplify right side
    747,537.30x = 241,044,734,646.36
  5. Step 5: Solve for x
    x = 241,044,734,646.36/747,537.30
  6. Step 6: Final answer
    x = 322,451.78

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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.