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Finding the Fourth Proportional to 667,224.43, 999,878.30 and 379,264.87

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Solution

The fourth proportional to 667,224.43, 999,878.30 and 379,264.87 is: 568,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,224.43 : 999,878.30 = 379,264.87 : x
  2. Step 2: Convert to fraction form
    667,224.43/999,878.30 = 379,264.87/x
  3. Step 3: Cross multiply
    667,224.43x = 999,878.30 × 379,264.87
  4. Step 4: Simplify right side
    667,224.43x = 379,218,713,465.32
  5. Step 5: Solve for x
    x = 379,218,713,465.32/667,224.43
  6. Step 6: Final answer
    x = 568,352.56

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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.