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Finding the Fourth Proportional to 486,560.88, 671,454.96 and 271,700.28

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Solution

The fourth proportional to 486,560.88, 671,454.96 and 271,700.28 is: 374,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,560.88 : 671,454.96 = 271,700.28 : x
  2. Step 2: Convert to fraction form
    486,560.88/671,454.96 = 271,700.28/x
  3. Step 3: Cross multiply
    486,560.88x = 671,454.96 × 271,700.28
  4. Step 4: Simplify right side
    486,560.88x = 182,434,500,639.39
  5. Step 5: Solve for x
    x = 182,434,500,639.39/486,560.88
  6. Step 6: Final answer
    x = 374,946.91

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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.