Home / 1,557,320.05-2,149,041.31-868,956.13

Finding the Fourth Proportional to 1,557,320.05, 2,149,041.31 and 868,956.13

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Solution

The fourth proportional to 1,557,320.05, 2,149,041.31 and 868,956.13 is: 1,199,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,320.05 : 2,149,041.31 = 868,956.13 : x
  2. Step 2: Convert to fraction form
    1,557,320.05/2,149,041.31 = 868,956.13/x
  3. Step 3: Cross multiply
    1,557,320.05x = 2,149,041.31 × 868,956.13
  4. Step 4: Simplify right side
    1,557,320.05x = 1,867,422,619,947.73
  5. Step 5: Solve for x
    x = 1,867,422,619,947.73/1,557,320.05
  6. Step 6: Final answer
    x = 1,199,125.78

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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.