Home / 1,215,608.20-1,677,645.78-806,988.04

Finding the Fourth Proportional to 1,215,608.20, 1,677,645.78 and 806,988.04

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Solution

The fourth proportional to 1,215,608.20, 1,677,645.78 and 806,988.04 is: 1,113,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,608.20 : 1,677,645.78 = 806,988.04 : x
  2. Step 2: Convert to fraction form
    1,215,608.20/1,677,645.78 = 806,988.04/x
  3. Step 3: Cross multiply
    1,215,608.20x = 1,677,645.78 × 806,988.04
  4. Step 4: Simplify right side
    1,215,608.20x = 1,353,840,079,816.47
  5. Step 5: Solve for x
    x = 1,353,840,079,816.47/1,215,608.20
  6. Step 6: Final answer
    x = 1,113,714.17

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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.