Home / 454,040.20-680,768.70-187,906.60

Finding the Fourth Proportional to 454,040.20, 680,768.70 and 187,906.60

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Solution

The fourth proportional to 454,040.20, 680,768.70 and 187,906.60 is: 281,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,040.20 : 680,768.70 = 187,906.60 : x
  2. Step 2: Convert to fraction form
    454,040.20/680,768.70 = 187,906.60/x
  3. Step 3: Cross multiply
    454,040.20x = 680,768.70 × 187,906.60
  4. Step 4: Simplify right side
    454,040.20x = 127,920,931,803.42
  5. Step 5: Solve for x
    x = 127,920,931,803.42/454,040.20
  6. Step 6: Final answer
    x = 281,739.22

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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.