Home / 782,452.29-1,174,114.42-422,615.87

Finding the Fourth Proportional to 782,452.29, 1,174,114.42 and 422,615.87

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Solution

The fourth proportional to 782,452.29, 1,174,114.42 and 422,615.87 is: 634,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,452.29 : 1,174,114.42 = 422,615.87 : x
  2. Step 2: Convert to fraction form
    782,452.29/1,174,114.42 = 422,615.87/x
  3. Step 3: Cross multiply
    782,452.29x = 1,174,114.42 × 422,615.87
  4. Step 4: Simplify right side
    782,452.29x = 496,199,387,087.85
  5. Step 5: Solve for x
    x = 496,199,387,087.85/782,452.29
  6. Step 6: Final answer
    x = 634,159.29

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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.