Home / 680,857.36-1,021,450.07-207,513.61

Finding the Fourth Proportional to 680,857.36, 1,021,450.07 and 207,513.61

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Solution

The fourth proportional to 680,857.36, 1,021,450.07 and 207,513.61 is: 311,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,857.36 : 1,021,450.07 = 207,513.61 : x
  2. Step 2: Convert to fraction form
    680,857.36/1,021,450.07 = 207,513.61/x
  3. Step 3: Cross multiply
    680,857.36x = 1,021,450.07 × 207,513.61
  4. Step 4: Simplify right side
    680,857.36x = 211,964,789,425.61
  5. Step 5: Solve for x
    x = 211,964,789,425.61/680,857.36
  6. Step 6: Final answer
    x = 311,320.41

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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.