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Finding the Fourth Proportional to 491,180.43, 677,580.86 and 287,098.02

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Solution

The fourth proportional to 491,180.43, 677,580.86 and 287,098.02 is: 396,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,180.43 : 677,580.86 = 287,098.02 : x
  2. Step 2: Convert to fraction form
    491,180.43/677,580.86 = 287,098.02/x
  3. Step 3: Cross multiply
    491,180.43x = 677,580.86 × 287,098.02
  4. Step 4: Simplify right side
    491,180.43x = 194,532,121,860.41
  5. Step 5: Solve for x
    x = 194,532,121,860.41/491,180.43
  6. Step 6: Final answer
    x = 396,050.23

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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.