Home / 1,605,711.80-2,409,540.01-646,380.61

Finding the Fourth Proportional to 1,605,711.80, 2,409,540.01 and 646,380.61

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Solution

The fourth proportional to 1,605,711.80, 2,409,540.01 and 646,380.61 is: 969,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,711.80 : 2,409,540.01 = 646,380.61 : x
  2. Step 2: Convert to fraction form
    1,605,711.80/2,409,540.01 = 646,380.61/x
  3. Step 3: Cross multiply
    1,605,711.80x = 2,409,540.01 × 646,380.61
  4. Step 4: Simplify right side
    1,605,711.80x = 1,557,479,933,843.40
  5. Step 5: Solve for x
    x = 1,557,479,933,843.40/1,605,711.80
  6. Step 6: Final answer
    x = 969,962.31

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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.