Home / 1,542,369.68-2,128,167.51-969,078.68

Finding the Fourth Proportional to 1,542,369.68, 2,128,167.51 and 969,078.68

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Solution

The fourth proportional to 1,542,369.68, 2,128,167.51 and 969,078.68 is: 1,337,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,369.68 : 2,128,167.51 = 969,078.68 : x
  2. Step 2: Convert to fraction form
    1,542,369.68/2,128,167.51 = 969,078.68/x
  3. Step 3: Cross multiply
    1,542,369.68x = 2,128,167.51 × 969,078.68
  4. Step 4: Simplify right side
    1,542,369.68x = 2,062,361,761,409.69
  5. Step 5: Solve for x
    x = 2,062,361,761,409.69/1,542,369.68
  6. Step 6: Final answer
    x = 1,337,138.42

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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.