Home / 1,300,987.97-1,795,377.53-720,220.73

Finding the Fourth Proportional to 1,300,987.97, 1,795,377.53 and 720,220.73

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Solution

The fourth proportional to 1,300,987.97, 1,795,377.53 and 720,220.73 is: 993,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,987.97 : 1,795,377.53 = 720,220.73 : x
  2. Step 2: Convert to fraction form
    1,300,987.97/1,795,377.53 = 720,220.73/x
  3. Step 3: Cross multiply
    1,300,987.97x = 1,795,377.53 × 720,220.73
  4. Step 4: Simplify right side
    1,300,987.97x = 1,293,068,102,704.21
  5. Step 5: Solve for x
    x = 1,293,068,102,704.21/1,300,987.97
  6. Step 6: Final answer
    x = 993,912.42

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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.