Home / 432,439.56-648,721.31-132,945.21

Finding the Fourth Proportional to 432,439.56, 648,721.31 and 132,945.21

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Solution

The fourth proportional to 432,439.56, 648,721.31 and 132,945.21 is: 199,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,439.56 : 648,721.31 = 132,945.21 : x
  2. Step 2: Convert to fraction form
    432,439.56/648,721.31 = 132,945.21/x
  3. Step 3: Cross multiply
    432,439.56x = 648,721.31 × 132,945.21
  4. Step 4: Simplify right side
    432,439.56x = 86,244,390,124.70
  5. Step 5: Solve for x
    x = 86,244,390,124.70/432,439.56
  6. Step 6: Final answer
    x = 199,436.86

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1.5x scale

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.