Home / 491,217.90-677,832.45-276,353.36

Finding the Fourth Proportional to 491,217.90, 677,832.45 and 276,353.36

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Solution

The fourth proportional to 491,217.90, 677,832.45 and 276,353.36 is: 381,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,217.90 : 677,832.45 = 276,353.36 : x
  2. Step 2: Convert to fraction form
    491,217.90/677,832.45 = 276,353.36/x
  3. Step 3: Cross multiply
    491,217.90x = 677,832.45 × 276,353.36
  4. Step 4: Simplify right side
    491,217.90x = 187,321,271,685.37
  5. Step 5: Solve for x
    x = 187,321,271,685.37/491,217.90
  6. Step 6: Final answer
    x = 381,340.48

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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.