Home / 491,056.26-677,654.98-276,191.70

Finding the Fourth Proportional to 491,056.26, 677,654.98 and 276,191.70

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Solution

The fourth proportional to 491,056.26, 677,654.98 and 276,191.70 is: 381,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,056.26 : 677,654.98 = 276,191.70 : x
  2. Step 2: Convert to fraction form
    491,056.26/677,654.98 = 276,191.70/x
  3. Step 3: Cross multiply
    491,056.26x = 677,654.98 × 276,191.70
  4. Step 4: Simplify right side
    491,056.26x = 187,162,680,939.67
  5. Step 5: Solve for x
    x = 187,162,680,939.67/491,056.26
  6. Step 6: Final answer
    x = 381,143.05

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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.