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Finding the Fourth Proportional to 486,265.82, 671,019.51 and 271,419.71

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Solution

The fourth proportional to 486,265.82, 671,019.51 and 271,419.71 is: 374,543.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,265.82 : 671,019.51 = 271,419.71 : x
  2. Step 2: Convert to fraction form
    486,265.82/671,019.51 = 271,419.71/x
  3. Step 3: Cross multiply
    486,265.82x = 671,019.51 × 271,419.71
  4. Step 4: Simplify right side
    486,265.82x = 182,127,920,719.02
  5. Step 5: Solve for x
    x = 182,127,920,719.02/486,265.82
  6. Step 6: Final answer
    x = 374,543.95

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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.