Home / 755,294.40-1,132,941.60-419,371.20

Finding the Fourth Proportional to 755,294.40, 1,132,941.60 and 419,371.20

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Solution

The fourth proportional to 755,294.40, 1,132,941.60 and 419,371.20 is: 629,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,294.40 : 1,132,941.60 = 419,371.20 : x
  2. Step 2: Convert to fraction form
    755,294.40/1,132,941.60 = 419,371.20/x
  3. Step 3: Cross multiply
    755,294.40x = 1,132,941.60 × 419,371.20
  4. Step 4: Simplify right side
    755,294.40x = 475,123,078,321.92
  5. Step 5: Solve for x
    x = 475,123,078,321.92/755,294.40
  6. Step 6: Final answer
    x = 629,056.80

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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.