Home / 1,187,806.60-1,781,709.90-1,170,091.90

Finding the Fourth Proportional to 1,187,806.60, 1,781,709.90 and 1,170,091.90

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Solution

The fourth proportional to 1,187,806.60, 1,781,709.90 and 1,170,091.90 is: 1,755,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,806.60 : 1,781,709.90 = 1,170,091.90 : x
  2. Step 2: Convert to fraction form
    1,187,806.60/1,781,709.90 = 1,170,091.90/x
  3. Step 3: Cross multiply
    1,187,806.60x = 1,781,709.90 × 1,170,091.90
  4. Step 4: Simplify right side
    1,187,806.60x = 2,084,764,322,139.81
  5. Step 5: Solve for x
    x = 2,084,764,322,139.81/1,187,806.60
  6. Step 6: Final answer
    x = 1,755,137.85

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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.