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Finding the Fourth Proportional to 486,458.64, 671,306.40 and 271,602

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Solution

The fourth proportional to 486,458.64, 671,306.40 and 271,602 is: 374,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,458.64 : 671,306.40 = 271,602 : x
  2. Step 2: Convert to fraction form
    486,458.64/671,306.40 = 271,602/x
  3. Step 3: Cross multiply
    486,458.64x = 671,306.40 × 271,602
  4. Step 4: Simplify right side
    486,458.64x = 182,328,160,852.80
  5. Step 5: Solve for x
    x = 182,328,160,852.80/486,458.64
  6. Step 6: Final answer
    x = 374,807.12

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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.