Home / 787,128.04-1,086,517.16-464,839.44

Finding the Fourth Proportional to 787,128.04, 1,086,517.16 and 464,839.44

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Solution

The fourth proportional to 787,128.04, 1,086,517.16 and 464,839.44 is: 641,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,128.04 : 1,086,517.16 = 464,839.44 : x
  2. Step 2: Convert to fraction form
    787,128.04/1,086,517.16 = 464,839.44/x
  3. Step 3: Cross multiply
    787,128.04x = 1,086,517.16 × 464,839.44
  4. Step 4: Simplify right side
    787,128.04x = 505,056,028,204.79
  5. Step 5: Solve for x
    x = 505,056,028,204.79/787,128.04
  6. Step 6: Final answer
    x = 641,644.06

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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.