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Finding the Fourth Proportional to 486,384.97, 671,141.82 and 271,520.32

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Solution

The fourth proportional to 486,384.97, 671,141.82 and 271,520.32 is: 374,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,384.97 : 671,141.82 = 271,520.32 : x
  2. Step 2: Convert to fraction form
    486,384.97/671,141.82 = 271,520.32/x
  3. Step 3: Cross multiply
    486,384.97x = 671,141.82 × 271,520.32
  4. Step 4: Simplify right side
    486,384.97x = 182,228,641,731.78
  5. Step 5: Solve for x
    x = 182,228,641,731.78/486,384.97
  6. Step 6: Final answer
    x = 374,659.28

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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.