Home / 876,354.42-1,209,380.85-494,380.02

Finding the Fourth Proportional to 876,354.42, 1,209,380.85 and 494,380.02

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Solution

The fourth proportional to 876,354.42, 1,209,380.85 and 494,380.02 is: 682,251.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,354.42 : 1,209,380.85 = 494,380.02 : x
  2. Step 2: Convert to fraction form
    876,354.42/1,209,380.85 = 494,380.02/x
  3. Step 3: Cross multiply
    876,354.42x = 1,209,380.85 × 494,380.02
  4. Step 4: Simplify right side
    876,354.42x = 597,893,728,810.62
  5. Step 5: Solve for x
    x = 597,893,728,810.62/876,354.42
  6. Step 6: Final answer
    x = 682,251.06

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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.