Home / 886,539.75-1,329,996.45-287,454.20

Finding the Fourth Proportional to 886,539.75, 1,329,996.45 and 287,454.20

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Solution

The fourth proportional to 886,539.75, 1,329,996.45 and 287,454.20 is: 431,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,539.75 : 1,329,996.45 = 287,454.20 : x
  2. Step 2: Convert to fraction form
    886,539.75/1,329,996.45 = 287,454.20/x
  3. Step 3: Cross multiply
    886,539.75x = 1,329,996.45 × 287,454.20
  4. Step 4: Simplify right side
    886,539.75x = 382,313,058,887.61
  5. Step 5: Solve for x
    x = 382,313,058,887.61/886,539.75
  6. Step 6: Final answer
    x = 431,241.87

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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.