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Finding the Fourth Proportional to 486,258.76, 671,070.90 and 271,440.76

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Solution

The fourth proportional to 486,258.76, 671,070.90 and 271,440.76 is: 374,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,258.76 : 671,070.90 = 271,440.76 : x
  2. Step 2: Convert to fraction form
    486,258.76/671,070.90 = 271,440.76/x
  3. Step 3: Cross multiply
    486,258.76x = 671,070.90 × 271,440.76
  4. Step 4: Simplify right side
    486,258.76x = 182,155,995,109.88
  5. Step 5: Solve for x
    x = 182,155,995,109.88/486,258.76
  6. Step 6: Final answer
    x = 374,607.12

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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.