Home / 1,013,081.97-1,396,431.05-686,295.57

Finding the Fourth Proportional to 1,013,081.97, 1,396,431.05 and 686,295.57

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Solution

The fourth proportional to 1,013,081.97, 1,396,431.05 and 686,295.57 is: 945,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,081.97 : 1,396,431.05 = 686,295.57 : x
  2. Step 2: Convert to fraction form
    1,013,081.97/1,396,431.05 = 686,295.57/x
  3. Step 3: Cross multiply
    1,013,081.97x = 1,396,431.05 × 686,295.57
  4. Step 4: Simplify right side
    1,013,081.97x = 958,364,439,993.97
  5. Step 5: Solve for x
    x = 958,364,439,993.97/1,013,081.97
  6. Step 6: Final answer
    x = 945,989.04

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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.