Home / 718,825.52-991,936.68-396,536.24

Finding the Fourth Proportional to 718,825.52, 991,936.68 and 396,536.24

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Solution

The fourth proportional to 718,825.52, 991,936.68 and 396,536.24 is: 547,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,825.52 : 991,936.68 = 396,536.24 : x
  2. Step 2: Convert to fraction form
    718,825.52/991,936.68 = 396,536.24/x
  3. Step 3: Cross multiply
    718,825.52x = 991,936.68 × 396,536.24
  4. Step 4: Simplify right side
    718,825.52x = 393,338,841,405.28
  5. Step 5: Solve for x
    x = 393,338,841,405.28/718,825.52
  6. Step 6: Final answer
    x = 547,196.55

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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.