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Finding the Fourth Proportional to 768,505.08, 1,150,395.48 and 655,131

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Solution

The fourth proportional to 768,505.08, 1,150,395.48 and 655,131 is: 980,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,505.08 : 1,150,395.48 = 655,131 : x
  2. Step 2: Convert to fraction form
    768,505.08/1,150,395.48 = 655,131/x
  3. Step 3: Cross multiply
    768,505.08x = 1,150,395.48 × 655,131
  4. Step 4: Simplify right side
    768,505.08x = 753,659,741,207.88
  5. Step 5: Solve for x
    x = 753,659,741,207.88/768,505.08
  6. Step 6: Final answer
    x = 980,682.84

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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.