Home / 856,896.75-1,286,116.02-457,878.60

Finding the Fourth Proportional to 856,896.75, 1,286,116.02 and 457,878.60

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Solution

The fourth proportional to 856,896.75, 1,286,116.02 and 457,878.60 is: 687,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,896.75 : 1,286,116.02 = 457,878.60 : x
  2. Step 2: Convert to fraction form
    856,896.75/1,286,116.02 = 457,878.60/x
  3. Step 3: Cross multiply
    856,896.75x = 1,286,116.02 × 457,878.60
  4. Step 4: Simplify right side
    856,896.75x = 588,885,002,675.17
  5. Step 5: Solve for x
    x = 588,885,002,675.17/856,896.75
  6. Step 6: Final answer
    x = 687,229.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.