Home / 1,215,899.56-1,677,943.01-699,643.18

Finding the Fourth Proportional to 1,215,899.56, 1,677,943.01 and 699,643.18

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Solution

The fourth proportional to 1,215,899.56, 1,677,943.01 and 699,643.18 is: 965,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,899.56 : 1,677,943.01 = 699,643.18 : x
  2. Step 2: Convert to fraction form
    1,215,899.56/1,677,943.01 = 699,643.18/x
  3. Step 3: Cross multiply
    1,215,899.56x = 1,677,943.01 × 699,643.18
  4. Step 4: Simplify right side
    1,215,899.56x = 1,173,961,383,375.17
  5. Step 5: Solve for x
    x = 1,173,961,383,375.17/1,215,899.56
  6. Step 6: Final answer
    x = 965,508.52

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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.