Home / 427,585.49-641,398.89-112,042.70

Finding the Fourth Proportional to 427,585.49, 641,398.89 and 112,042.70

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Solution

The fourth proportional to 427,585.49, 641,398.89 and 112,042.70 is: 168,069.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,585.49 : 641,398.89 = 112,042.70 : x
  2. Step 2: Convert to fraction form
    427,585.49/641,398.89 = 112,042.70/x
  3. Step 3: Cross multiply
    427,585.49x = 641,398.89 × 112,042.70
  4. Step 4: Simplify right side
    427,585.49x = 71,864,063,412.60
  5. Step 5: Solve for x
    x = 71,864,063,412.60/427,585.49
  6. Step 6: Final answer
    x = 168,069.46

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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.