Home / 886,720.75-1,330,267.92-287,635.13

Finding the Fourth Proportional to 886,720.75, 1,330,267.92 and 287,635.13

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Solution

The fourth proportional to 886,720.75, 1,330,267.92 and 287,635.13 is: 431,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,720.75 : 1,330,267.92 = 287,635.13 : x
  2. Step 2: Convert to fraction form
    886,720.75/1,330,267.92 = 287,635.13/x
  3. Step 3: Cross multiply
    886,720.75x = 1,330,267.92 × 287,635.13
  4. Step 4: Simplify right side
    886,720.75x = 382,631,786,104.03
  5. Step 5: Solve for x
    x = 382,631,786,104.03/886,720.75
  6. Step 6: Final answer
    x = 431,513.29

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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.