Home / 1,440,866.22-1,988,401.56-787,505.40

Finding the Fourth Proportional to 1,440,866.22, 1,988,401.56 and 787,505.40

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Solution

The fourth proportional to 1,440,866.22, 1,988,401.56 and 787,505.40 is: 1,086,760.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,866.22 : 1,988,401.56 = 787,505.40 : x
  2. Step 2: Convert to fraction form
    1,440,866.22/1,988,401.56 = 787,505.40/x
  3. Step 3: Cross multiply
    1,440,866.22x = 1,988,401.56 × 787,505.40
  4. Step 4: Simplify right side
    1,440,866.22x = 1,565,876,965,868.42
  5. Step 5: Solve for x
    x = 1,565,876,965,868.42/1,440,866.22
  6. Step 6: Final answer
    x = 1,086,760.83

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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.