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Finding the Fourth Proportional to 448,864, 619,445.28 and 247,672.96

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Solution

The fourth proportional to 448,864, 619,445.28 and 247,672.96 is: 341,795.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,864 : 619,445.28 = 247,672.96 : x
  2. Step 2: Convert to fraction form
    448,864/619,445.28 = 247,672.96/x
  3. Step 3: Cross multiply
    448,864x = 619,445.28 × 247,672.96
  4. Step 4: Simplify right side
    448,864x = 153,419,846,055.63
  5. Step 5: Solve for x
    x = 153,419,846,055.63/448,864
  6. Step 6: Final answer
    x = 341,795.84

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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.