Home / 715,292.87-987,977.43-534,805.22

Finding the Fourth Proportional to 715,292.87, 987,977.43 and 534,805.22

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Solution

The fourth proportional to 715,292.87, 987,977.43 and 534,805.22 is: 738,684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,292.87 : 987,977.43 = 534,805.22 : x
  2. Step 2: Convert to fraction form
    715,292.87/987,977.43 = 534,805.22/x
  3. Step 3: Cross multiply
    715,292.87x = 987,977.43 × 534,805.22
  4. Step 4: Simplify right side
    715,292.87x = 528,375,489,276.13
  5. Step 5: Solve for x
    x = 528,375,489,276.13/715,292.87
  6. Step 6: Final answer
    x = 738,684.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.