Home / 1,200,106.57-1,655,366.70-769,704.97

Finding the Fourth Proportional to 1,200,106.57, 1,655,366.70 and 769,704.97

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Solution

The fourth proportional to 1,200,106.57, 1,655,366.70 and 769,704.97 is: 1,061,692.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,106.57 : 1,655,366.70 = 769,704.97 : x
  2. Step 2: Convert to fraction form
    1,200,106.57/1,655,366.70 = 769,704.97/x
  3. Step 3: Cross multiply
    1,200,106.57x = 1,655,366.70 × 769,704.97
  4. Step 4: Simplify right side
    1,200,106.57x = 1,274,143,976,162.50
  5. Step 5: Solve for x
    x = 1,274,143,976,162.50/1,200,106.57
  6. Step 6: Final answer
    x = 1,061,692.36

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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.