Home / 491,180.93-677,581.55-287,098.52

Finding the Fourth Proportional to 491,180.93, 677,581.55 and 287,098.52

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Solution

The fourth proportional to 491,180.93, 677,581.55 and 287,098.52 is: 396,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,180.93 : 677,581.55 = 287,098.52 : x
  2. Step 2: Convert to fraction form
    491,180.93/677,581.55 = 287,098.52/x
  3. Step 3: Cross multiply
    491,180.93x = 677,581.55 × 287,098.52
  4. Step 4: Simplify right side
    491,180.93x = 194,532,658,748.81
  5. Step 5: Solve for x
    x = 194,532,658,748.81/491,180.93
  6. Step 6: Final answer
    x = 396,050.92

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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.