Home / 491,250.42-677,915.46-276,388.20

Finding the Fourth Proportional to 491,250.42, 677,915.46 and 276,388.20

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Solution

The fourth proportional to 491,250.42, 677,915.46 and 276,388.20 is: 381,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,250.42 : 677,915.46 = 276,388.20 : x
  2. Step 2: Convert to fraction form
    491,250.42/677,915.46 = 276,388.20/x
  3. Step 3: Cross multiply
    491,250.42x = 677,915.46 × 276,388.20
  4. Step 4: Simplify right side
    491,250.42x = 187,367,833,741.57
  5. Step 5: Solve for x
    x = 187,367,833,741.57/491,250.42
  6. Step 6: Final answer
    x = 381,410.02

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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.