Home / 430,002.97-645,004.56-126,397.13

Finding the Fourth Proportional to 430,002.97, 645,004.56 and 126,397.13

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Solution

The fourth proportional to 430,002.97, 645,004.56 and 126,397.13 is: 189,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,002.97 : 645,004.56 = 126,397.13 : x
  2. Step 2: Convert to fraction form
    430,002.97/645,004.56 = 126,397.13/x
  3. Step 3: Cross multiply
    430,002.97x = 645,004.56 × 126,397.13
  4. Step 4: Simplify right side
    430,002.97x = 81,526,725,220.91
  5. Step 5: Solve for x
    x = 81,526,725,220.91/430,002.97
  6. Step 6: Final answer
    x = 189,595.73

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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.