Home / 754,657.80-1,131,986.70-680,008.20

Finding the Fourth Proportional to 754,657.80, 1,131,986.70 and 680,008.20

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Solution

The fourth proportional to 754,657.80, 1,131,986.70 and 680,008.20 is: 1,020,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,657.80 : 1,131,986.70 = 680,008.20 : x
  2. Step 2: Convert to fraction form
    754,657.80/1,131,986.70 = 680,008.20/x
  3. Step 3: Cross multiply
    754,657.80x = 1,131,986.70 × 680,008.20
  4. Step 4: Simplify right side
    754,657.80x = 769,760,238,290.94
  5. Step 5: Solve for x
    x = 769,760,238,290.94/754,657.80
  6. Step 6: Final answer
    x = 1,020,012.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.