Home / 489,177.12-675,079.20-274,337.04

Finding the Fourth Proportional to 489,177.12, 675,079.20 and 274,337.04

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Solution

The fourth proportional to 489,177.12, 675,079.20 and 274,337.04 is: 378,593.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,177.12 : 675,079.20 = 274,337.04 : x
  2. Step 2: Convert to fraction form
    489,177.12/675,079.20 = 274,337.04/x
  3. Step 3: Cross multiply
    489,177.12x = 675,079.20 × 274,337.04
  4. Step 4: Simplify right side
    489,177.12x = 185,199,229,493.57
  5. Step 5: Solve for x
    x = 185,199,229,493.57/489,177.12
  6. Step 6: Final answer
    x = 378,593.40

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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.