Home / 423,488.10-635,179.88-123,965.48

Finding the Fourth Proportional to 423,488.10, 635,179.88 and 123,965.48

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Solution

The fourth proportional to 423,488.10, 635,179.88 and 123,965.48 is: 185,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,488.10 : 635,179.88 = 123,965.48 : x
  2. Step 2: Convert to fraction form
    423,488.10/635,179.88 = 123,965.48/x
  3. Step 3: Cross multiply
    423,488.10x = 635,179.88 × 123,965.48
  4. Step 4: Simplify right side
    423,488.10x = 78,740,378,710.54
  5. Step 5: Solve for x
    x = 78,740,378,710.54/423,488.10
  6. Step 6: Final answer
    x = 185,932.92

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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.