Home / 432,001.20-648,001.80-272,568.90

Finding the Fourth Proportional to 432,001.20, 648,001.80 and 272,568.90

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Solution

The fourth proportional to 432,001.20, 648,001.80 and 272,568.90 is: 408,853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,001.20 : 648,001.80 = 272,568.90 : x
  2. Step 2: Convert to fraction form
    432,001.20/648,001.80 = 272,568.90/x
  3. Step 3: Cross multiply
    432,001.20x = 648,001.80 × 272,568.90
  4. Step 4: Simplify right side
    432,001.20x = 176,625,137,824.02
  5. Step 5: Solve for x
    x = 176,625,137,824.02/432,001.20
  6. Step 6: Final answer
    x = 408,853.35

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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.