Home / 1,557,288.78-2,149,063.82-868,948.14

Finding the Fourth Proportional to 1,557,288.78, 2,149,063.82 and 868,948.14

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Solution

The fourth proportional to 1,557,288.78, 2,149,063.82 and 868,948.14 is: 1,199,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,288.78 : 2,149,063.82 = 868,948.14 : x
  2. Step 2: Convert to fraction form
    1,557,288.78/2,149,063.82 = 868,948.14/x
  3. Step 3: Cross multiply
    1,557,288.78x = 2,149,063.82 × 868,948.14
  4. Step 4: Simplify right side
    1,557,288.78x = 1,867,425,009,130.29
  5. Step 5: Solve for x
    x = 1,867,425,009,130.29/1,557,288.78
  6. Step 6: Final answer
    x = 1,199,151.39

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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.