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Finding the Fourth Proportional to 449,073.12, 619,717.92 and 247,869.12

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Solution

The fourth proportional to 449,073.12, 619,717.92 and 247,869.12 is: 342,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,073.12 : 619,717.92 = 247,869.12 : x
  2. Step 2: Convert to fraction form
    449,073.12/619,717.92 = 247,869.12/x
  3. Step 3: Cross multiply
    449,073.12x = 619,717.92 × 247,869.12
  4. Step 4: Simplify right side
    449,073.12x = 153,608,935,478.63
  5. Step 5: Solve for x
    x = 153,608,935,478.63/449,073.12
  6. Step 6: Final answer
    x = 342,057.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.