Home / 1,215,607.20-1,677,644.40-806,987.04

Finding the Fourth Proportional to 1,215,607.20, 1,677,644.40 and 806,987.04

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Solution

The fourth proportional to 1,215,607.20, 1,677,644.40 and 806,987.04 is: 1,113,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,607.20 : 1,677,644.40 = 806,987.04 : x
  2. Step 2: Convert to fraction form
    1,215,607.20/1,677,644.40 = 806,987.04/x
  3. Step 3: Cross multiply
    1,215,607.20x = 1,677,644.40 × 806,987.04
  4. Step 4: Simplify right side
    1,215,607.20x = 1,353,837,288,528.58
  5. Step 5: Solve for x
    x = 1,353,837,288,528.58/1,215,607.20
  6. Step 6: Final answer
    x = 1,113,712.79

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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.