Home / 449,657.10-674,152.12-272,121.90

Finding the Fourth Proportional to 449,657.10, 674,152.12 and 272,121.90

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Solution

The fourth proportional to 449,657.10, 674,152.12 and 272,121.90 is: 407,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,657.10 : 674,152.12 = 272,121.90 : x
  2. Step 2: Convert to fraction form
    449,657.10/674,152.12 = 272,121.90/x
  3. Step 3: Cross multiply
    449,657.10x = 674,152.12 × 272,121.90
  4. Step 4: Simplify right side
    449,657.10x = 183,451,555,783.43
  5. Step 5: Solve for x
    x = 183,451,555,783.43/449,657.10
  6. Step 6: Final answer
    x = 407,981.01

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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.