Home / 680,890.41-1,021,204.13-207,623.61

Finding the Fourth Proportional to 680,890.41, 1,021,204.13 and 207,623.61

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Solution

The fourth proportional to 680,890.41, 1,021,204.13 and 207,623.61 is: 311,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,890.41 : 1,021,204.13 = 207,623.61 : x
  2. Step 2: Convert to fraction form
    680,890.41/1,021,204.13 = 207,623.61/x
  3. Step 3: Cross multiply
    680,890.41x = 1,021,204.13 × 207,623.61
  4. Step 4: Simplify right side
    680,890.41x = 212,026,086,979.39
  5. Step 5: Solve for x
    x = 212,026,086,979.39/680,890.41
  6. Step 6: Final answer
    x = 311,395.32

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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.