Home / 1,420,448.56-1,960,205.96-775,868.56

Finding the Fourth Proportional to 1,420,448.56, 1,960,205.96 and 775,868.56

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Solution

The fourth proportional to 1,420,448.56, 1,960,205.96 and 775,868.56 is: 1,070,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,448.56 : 1,960,205.96 = 775,868.56 : x
  2. Step 2: Convert to fraction form
    1,420,448.56/1,960,205.96 = 775,868.56/x
  3. Step 3: Cross multiply
    1,420,448.56x = 1,960,205.96 × 775,868.56
  4. Step 4: Simplify right side
    1,420,448.56x = 1,520,862,175,488.62
  5. Step 5: Solve for x
    x = 1,520,862,175,488.62/1,420,448.56
  6. Step 6: Final answer
    x = 1,070,691.48

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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.