Home / 1,262,149.40-1,888,790.96-1,086,774.68

Finding the Fourth Proportional to 1,262,149.40, 1,888,790.96 and 1,086,774.68

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Solution

The fourth proportional to 1,262,149.40, 1,888,790.96 and 1,086,774.68 is: 1,626,344.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,149.40 : 1,888,790.96 = 1,086,774.68 : x
  2. Step 2: Convert to fraction form
    1,262,149.40/1,888,790.96 = 1,086,774.68/x
  3. Step 3: Cross multiply
    1,262,149.40x = 1,888,790.96 × 1,086,774.68
  4. Step 4: Simplify right side
    1,262,149.40x = 2,052,690,191,140.89
  5. Step 5: Solve for x
    x = 2,052,690,191,140.89/1,262,149.40
  6. Step 6: Final answer
    x = 1,626,344.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.