Home / 1,420,418.44-1,960,165.80-775,839.04

Finding the Fourth Proportional to 1,420,418.44, 1,960,165.80 and 775,839.04

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Solution

The fourth proportional to 1,420,418.44, 1,960,165.80 and 775,839.04 is: 1,070,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,418.44 : 1,960,165.80 = 775,839.04 : x
  2. Step 2: Convert to fraction form
    1,420,418.44/1,960,165.80 = 775,839.04/x
  3. Step 3: Cross multiply
    1,420,418.44x = 1,960,165.80 × 775,839.04
  4. Step 4: Simplify right side
    1,420,418.44x = 1,520,773,152,512.83
  5. Step 5: Solve for x
    x = 1,520,773,152,512.83/1,420,418.44
  6. Step 6: Final answer
    x = 1,070,651.51

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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.