Home / 1,368,191.15-1,888,013.51-787,320.41

Finding the Fourth Proportional to 1,368,191.15, 1,888,013.51 and 787,320.41

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Solution

The fourth proportional to 1,368,191.15, 1,888,013.51 and 787,320.41 is: 1,086,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,191.15 : 1,888,013.51 = 787,320.41 : x
  2. Step 2: Convert to fraction form
    1,368,191.15/1,888,013.51 = 787,320.41/x
  3. Step 3: Cross multiply
    1,368,191.15x = 1,888,013.51 × 787,320.41
  4. Step 4: Simplify right side
    1,368,191.15x = 1,486,471,560,354.52
  5. Step 5: Solve for x
    x = 1,486,471,560,354.52/1,368,191.15
  6. Step 6: Final answer
    x = 1,086,450.21

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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.