Home / 403,519.92-556,836.14-231,429.04

Finding the Fourth Proportional to 403,519.92, 556,836.14 and 231,429.04

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Solution

The fourth proportional to 403,519.92, 556,836.14 and 231,429.04 is: 319,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,519.92 : 556,836.14 = 231,429.04 : x
  2. Step 2: Convert to fraction form
    403,519.92/556,836.14 = 231,429.04/x
  3. Step 3: Cross multiply
    403,519.92x = 556,836.14 × 231,429.04
  4. Step 4: Simplify right side
    403,519.92x = 128,868,052,768.30
  5. Step 5: Solve for x
    x = 128,868,052,768.30/403,519.92
  6. Step 6: Final answer
    x = 319,359.83

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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.