Home / 755,401.42-1,132,990.39-275,516.89

Finding the Fourth Proportional to 755,401.42, 1,132,990.39 and 275,516.89

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Solution

The fourth proportional to 755,401.42, 1,132,990.39 and 275,516.89 is: 413,234.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,401.42 : 1,132,990.39 = 275,516.89 : x
  2. Step 2: Convert to fraction form
    755,401.42/1,132,990.39 = 275,516.89/x
  3. Step 3: Cross multiply
    755,401.42x = 1,132,990.39 × 275,516.89
  4. Step 4: Simplify right side
    755,401.42x = 312,157,990,987.90
  5. Step 5: Solve for x
    x = 312,157,990,987.90/755,401.42
  6. Step 6: Final answer
    x = 413,234.58

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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.