Home / 1,368,728.67-1,888,857.80-756,922.61

Finding the Fourth Proportional to 1,368,728.67, 1,888,857.80 and 756,922.61

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Solution

The fourth proportional to 1,368,728.67, 1,888,857.80 and 756,922.61 is: 1,044,559.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,728.67 : 1,888,857.80 = 756,922.61 : x
  2. Step 2: Convert to fraction form
    1,368,728.67/1,888,857.80 = 756,922.61/x
  3. Step 3: Cross multiply
    1,368,728.67x = 1,888,857.80 × 756,922.61
  4. Step 4: Simplify right side
    1,368,728.67x = 1,429,719,175,894.86
  5. Step 5: Solve for x
    x = 1,429,719,175,894.86/1,368,728.67
  6. Step 6: Final answer
    x = 1,044,559.97

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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.