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Finding the Fourth Proportional to 489,049.38, 674,886.33 and 274,189.32

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Solution

The fourth proportional to 489,049.38, 674,886.33 and 274,189.32 is: 378,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,049.38 : 674,886.33 = 274,189.32 : x
  2. Step 2: Convert to fraction form
    489,049.38/674,886.33 = 274,189.32/x
  3. Step 3: Cross multiply
    489,049.38x = 674,886.33 × 274,189.32
  4. Step 4: Simplify right side
    489,049.38x = 185,046,623,900.00
  5. Step 5: Solve for x
    x = 185,046,623,900.00/489,049.38
  6. Step 6: Final answer
    x = 378,380.24

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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.