Home / 485,974.13-670,644.59-271,114.20

Finding the Fourth Proportional to 485,974.13, 670,644.59 and 271,114.20

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Solution

The fourth proportional to 485,974.13, 670,644.59 and 271,114.20 is: 374,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,974.13 : 670,644.59 = 271,114.20 : x
  2. Step 2: Convert to fraction form
    485,974.13/670,644.59 = 271,114.20/x
  3. Step 3: Cross multiply
    485,974.13x = 670,644.59 × 271,114.20
  4. Step 4: Simplify right side
    485,974.13x = 181,821,266,793.38
  5. Step 5: Solve for x
    x = 181,821,266,793.38/485,974.13
  6. Step 6: Final answer
    x = 374,137.75

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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.