Home / 1,397,292.85-2,095,939.28-1,220,145.85

Finding the Fourth Proportional to 1,397,292.85, 2,095,939.28 and 1,220,145.85

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Solution

The fourth proportional to 1,397,292.85, 2,095,939.28 and 1,220,145.85 is: 1,830,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,292.85 : 2,095,939.28 = 1,220,145.85 : x
  2. Step 2: Convert to fraction form
    1,397,292.85/2,095,939.28 = 1,220,145.85/x
  3. Step 3: Cross multiply
    1,397,292.85x = 2,095,939.28 × 1,220,145.85
  4. Step 4: Simplify right side
    1,397,292.85x = 2,557,351,608,243.26
  5. Step 5: Solve for x
    x = 2,557,351,608,243.26/1,397,292.85
  6. Step 6: Final answer
    x = 1,830,218.78

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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.