Home / 1,028,100.48-1,418,609.40-645,856.56

Finding the Fourth Proportional to 1,028,100.48, 1,418,609.40 and 645,856.56

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Solution

The fourth proportional to 1,028,100.48, 1,418,609.40 and 645,856.56 is: 891,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,100.48 : 1,418,609.40 = 645,856.56 : x
  2. Step 2: Convert to fraction form
    1,028,100.48/1,418,609.40 = 645,856.56/x
  3. Step 3: Cross multiply
    1,028,100.48x = 1,418,609.40 × 645,856.56
  4. Step 4: Simplify right side
    1,028,100.48x = 916,218,187,067.66
  5. Step 5: Solve for x
    x = 916,218,187,067.66/1,028,100.48
  6. Step 6: Final answer
    x = 891,175.72

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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.