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Finding the Fourth Proportional to 448,872, 619,456.32 and 247,680.96

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Solution

The fourth proportional to 448,872, 619,456.32 and 247,680.96 is: 341,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,872 : 619,456.32 = 247,680.96 : x
  2. Step 2: Convert to fraction form
    448,872/619,456.32 = 247,680.96/x
  3. Step 3: Cross multiply
    448,872x = 619,456.32 × 247,680.96
  4. Step 4: Simplify right side
    448,872x = 153,427,536,015.67
  5. Step 5: Solve for x
    x = 153,427,536,015.67/448,872
  6. Step 6: Final answer
    x = 341,806.88

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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.