Home / 690,910.75-1,036,223.16-185,351.88

Finding the Fourth Proportional to 690,910.75, 1,036,223.16 and 185,351.88

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Solution

The fourth proportional to 690,910.75, 1,036,223.16 and 185,351.88 is: 277,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,910.75 : 1,036,223.16 = 185,351.88 : x
  2. Step 2: Convert to fraction form
    690,910.75/1,036,223.16 = 185,351.88/x
  3. Step 3: Cross multiply
    690,910.75x = 1,036,223.16 × 185,351.88
  4. Step 4: Simplify right side
    690,910.75x = 192,065,910,805.54
  5. Step 5: Solve for x
    x = 192,065,910,805.54/690,910.75
  6. Step 6: Final answer
    x = 277,989.47

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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.