Home / 491,056.02-677,650.68-276,196.02

Finding the Fourth Proportional to 491,056.02, 677,650.68 and 276,196.02

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Solution

The fourth proportional to 491,056.02, 677,650.68 and 276,196.02 is: 381,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,056.02 : 677,650.68 = 276,196.02 : x
  2. Step 2: Convert to fraction form
    491,056.02/677,650.68 = 276,196.02/x
  3. Step 3: Cross multiply
    491,056.02x = 677,650.68 × 276,196.02
  4. Step 4: Simplify right side
    491,056.02x = 187,164,420,766.29
  5. Step 5: Solve for x
    x = 187,164,420,766.29/491,056.02
  6. Step 6: Final answer
    x = 381,146.78

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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.