Home / 680,976.62-1,021,462.19-207,660.61

Finding the Fourth Proportional to 680,976.62, 1,021,462.19 and 207,660.61

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Solution

The fourth proportional to 680,976.62, 1,021,462.19 and 207,660.61 is: 311,490.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,976.62 : 1,021,462.19 = 207,660.61 : x
  2. Step 2: Convert to fraction form
    680,976.62/1,021,462.19 = 207,660.61/x
  3. Step 3: Cross multiply
    680,976.62x = 1,021,462.19 × 207,660.61
  4. Step 4: Simplify right side
    680,976.62x = 212,117,463,652.68
  5. Step 5: Solve for x
    x = 212,117,463,652.68/680,976.62
  6. Step 6: Final answer
    x = 311,490.08

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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.