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Finding the Fourth Proportional to 486,275.60, 671,073 and 271,414.64

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Solution

The fourth proportional to 486,275.60, 671,073 and 271,414.64 is: 374,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,275.60 : 671,073 = 271,414.64 : x
  2. Step 2: Convert to fraction form
    486,275.60/671,073 = 271,414.64/x
  3. Step 3: Cross multiply
    486,275.60x = 671,073 × 271,414.64
  4. Step 4: Simplify right side
    486,275.60x = 182,139,036,708.72
  5. Step 5: Solve for x
    x = 182,139,036,708.72/486,275.60
  6. Step 6: Final answer
    x = 374,559.28

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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.