Home / 1,202,315.90-1,659,290.89-685,951.21

Finding the Fourth Proportional to 1,202,315.90, 1,659,290.89 and 685,951.21

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Solution

The fourth proportional to 1,202,315.90, 1,659,290.89 and 685,951.21 is: 946,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,315.90 : 1,659,290.89 = 685,951.21 : x
  2. Step 2: Convert to fraction form
    1,202,315.90/1,659,290.89 = 685,951.21/x
  3. Step 3: Cross multiply
    1,202,315.90x = 1,659,290.89 × 685,951.21
  4. Step 4: Simplify right side
    1,202,315.90x = 1,138,192,593,737.48
  5. Step 5: Solve for x
    x = 1,138,192,593,737.48/1,202,315.90
  6. Step 6: Final answer
    x = 946,666.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.