Home / 754,658.80-1,131,988.20-680,009.20

Finding the Fourth Proportional to 754,658.80, 1,131,988.20 and 680,009.20

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Solution

The fourth proportional to 754,658.80, 1,131,988.20 and 680,009.20 is: 1,020,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,658.80 : 1,131,988.20 = 680,009.20 : x
  2. Step 2: Convert to fraction form
    754,658.80/1,131,988.20 = 680,009.20/x
  3. Step 3: Cross multiply
    754,658.80x = 1,131,988.20 × 680,009.20
  4. Step 4: Simplify right side
    754,658.80x = 769,762,390,291.44
  5. Step 5: Solve for x
    x = 769,762,390,291.44/754,658.80
  6. Step 6: Final answer
    x = 1,020,013.80

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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.