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Finding the Fourth Proportional to 447,912.68, 670,290.98 and 279,512.24

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Solution

The fourth proportional to 447,912.68, 670,290.98 and 279,512.24 is: 418,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,912.68 : 670,290.98 = 279,512.24 : x
  2. Step 2: Convert to fraction form
    447,912.68/670,290.98 = 279,512.24/x
  3. Step 3: Cross multiply
    447,912.68x = 670,290.98 × 279,512.24
  4. Step 4: Simplify right side
    447,912.68x = 187,354,528,522.58
  5. Step 5: Solve for x
    x = 187,354,528,522.58/447,912.68
  6. Step 6: Final answer
    x = 418,283.61

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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.