Home / 715,949.52-987,928.52-572,657.36

Finding the Fourth Proportional to 715,949.52, 987,928.52 and 572,657.36

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Solution

The fourth proportional to 715,949.52, 987,928.52 and 572,657.36 is: 790,201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,949.52 : 987,928.52 = 572,657.36 : x
  2. Step 2: Convert to fraction form
    715,949.52/987,928.52 = 572,657.36/x
  3. Step 3: Cross multiply
    715,949.52x = 987,928.52 × 572,657.36
  4. Step 4: Simplify right side
    715,949.52x = 565,744,538,131.91
  5. Step 5: Solve for x
    x = 565,744,538,131.91/715,949.52
  6. Step 6: Final answer
    x = 790,201.71

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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.