Home / 432,077.20-648,115.80-272,644.90

Finding the Fourth Proportional to 432,077.20, 648,115.80 and 272,644.90

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Solution

The fourth proportional to 432,077.20, 648,115.80 and 272,644.90 is: 408,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,077.20 : 648,115.80 = 272,644.90 : x
  2. Step 2: Convert to fraction form
    432,077.20/648,115.80 = 272,644.90/x
  3. Step 3: Cross multiply
    432,077.20x = 648,115.80 × 272,644.90
  4. Step 4: Simplify right side
    432,077.20x = 176,705,467,479.42
  5. Step 5: Solve for x
    x = 176,705,467,479.42/432,077.20
  6. Step 6: Final answer
    x = 408,967.35

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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.