Home / 1,247,031.20-1,720,756.82-703,134.59

Finding the Fourth Proportional to 1,247,031.20, 1,720,756.82 and 703,134.59

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Solution

The fourth proportional to 1,247,031.20, 1,720,756.82 and 703,134.59 is: 970,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,031.20 : 1,720,756.82 = 703,134.59 : x
  2. Step 2: Convert to fraction form
    1,247,031.20/1,720,756.82 = 703,134.59/x
  3. Step 3: Cross multiply
    1,247,031.20x = 1,720,756.82 × 703,134.59
  4. Step 4: Simplify right side
    1,247,031.20x = 1,209,923,629,000.95
  5. Step 5: Solve for x
    x = 1,209,923,629,000.95/1,247,031.20
  6. Step 6: Final answer
    x = 970,243.27

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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.