Home / 319,964.24-480,439.60-270,691.76

Finding the Fourth Proportional to 319,964.24, 480,439.60 and 270,691.76

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Solution

The fourth proportional to 319,964.24, 480,439.60 and 270,691.76 is: 406,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,964.24 : 480,439.60 = 270,691.76 : x
  2. Step 2: Convert to fraction form
    319,964.24/480,439.60 = 270,691.76/x
  3. Step 3: Cross multiply
    319,964.24x = 480,439.60 × 270,691.76
  4. Step 4: Simplify right side
    319,964.24x = 130,051,040,897.70
  5. Step 5: Solve for x
    x = 130,051,040,897.70/319,964.24
  6. Step 6: Final answer
    x = 406,454.92

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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.