Home / 756,021.20-1,134,031.80-667,447.70

Finding the Fourth Proportional to 756,021.20, 1,134,031.80 and 667,447.70

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Solution

The fourth proportional to 756,021.20, 1,134,031.80 and 667,447.70 is: 1,001,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,021.20 : 1,134,031.80 = 667,447.70 : x
  2. Step 2: Convert to fraction form
    756,021.20/1,134,031.80 = 667,447.70/x
  3. Step 3: Cross multiply
    756,021.20x = 1,134,031.80 × 667,447.70
  4. Step 4: Simplify right side
    756,021.20x = 756,906,916,636.86
  5. Step 5: Solve for x
    x = 756,906,916,636.86/756,021.20
  6. Step 6: Final answer
    x = 1,001,171.55

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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.