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Finding the Fourth Proportional to 486,278.76, 671,098.50 and 271,460.76

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Solution

The fourth proportional to 486,278.76, 671,098.50 and 271,460.76 is: 374,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,278.76 : 671,098.50 = 271,460.76 : x
  2. Step 2: Convert to fraction form
    486,278.76/671,098.50 = 271,460.76/x
  3. Step 3: Cross multiply
    486,278.76x = 671,098.50 × 271,460.76
  4. Step 4: Simplify right side
    486,278.76x = 182,176,908,844.86
  5. Step 5: Solve for x
    x = 182,176,908,844.86/486,278.76
  6. Step 6: Final answer
    x = 374,634.72

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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.