Home / 2,102,805.60-3,153,286.80-840,213.60

Finding the Fourth Proportional to 2,102,805.60, 3,153,286.80 and 840,213.60

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Solution

The fourth proportional to 2,102,805.60, 3,153,286.80 and 840,213.60 is: 1,259,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,805.60 : 3,153,286.80 = 840,213.60 : x
  2. Step 2: Convert to fraction form
    2,102,805.60/3,153,286.80 = 840,213.60/x
  3. Step 3: Cross multiply
    2,102,805.60x = 3,153,286.80 × 840,213.60
  4. Step 4: Simplify right side
    2,102,805.60x = 2,649,434,454,060.48
  5. Step 5: Solve for x
    x = 2,649,434,454,060.48/2,102,805.60
  6. Step 6: Final answer
    x = 1,259,952.16

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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.