Home / 427,584.49-641,397.39-112,041.70

Finding the Fourth Proportional to 427,584.49, 641,397.39 and 112,041.70

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Solution

The fourth proportional to 427,584.49, 641,397.39 and 112,041.70 is: 168,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,584.49 : 641,397.39 = 112,041.70 : x
  2. Step 2: Convert to fraction form
    427,584.49/641,397.39 = 112,041.70/x
  3. Step 3: Cross multiply
    427,584.49x = 641,397.39 × 112,041.70
  4. Step 4: Simplify right side
    427,584.49x = 71,863,253,951.16
  5. Step 5: Solve for x
    x = 71,863,253,951.16/427,584.49
  6. Step 6: Final answer
    x = 168,067.96

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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.