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Finding the Fourth Proportional to 436,967, 655,486.06 and 121,423.92

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Solution

The fourth proportional to 436,967, 655,486.06 and 121,423.92 is: 182,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,967 : 655,486.06 = 121,423.92 : x
  2. Step 2: Convert to fraction form
    436,967/655,486.06 = 121,423.92/x
  3. Step 3: Cross multiply
    436,967x = 655,486.06 × 121,423.92
  4. Step 4: Simplify right side
    436,967x = 79,591,686,910.56
  5. Step 5: Solve for x
    x = 79,591,686,910.56/436,967
  6. Step 6: Final answer
    x = 182,145.76

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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.