Home / 427,874.14-641,785.29-112,324.06

Finding the Fourth Proportional to 427,874.14, 641,785.29 and 112,324.06

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Solution

The fourth proportional to 427,874.14, 641,785.29 and 112,324.06 is: 168,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,874.14 : 641,785.29 = 112,324.06 : x
  2. Step 2: Convert to fraction form
    427,874.14/641,785.29 = 112,324.06/x
  3. Step 3: Cross multiply
    427,874.14x = 641,785.29 × 112,324.06
  4. Step 4: Simplify right side
    427,874.14x = 72,087,929,421.08
  5. Step 5: Solve for x
    x = 72,087,929,421.08/427,874.14
  6. Step 6: Final answer
    x = 168,479.29

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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.