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Finding the Fourth Proportional to 3,489,423.72, 5,234,135.64 and 965,079

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Solution

The fourth proportional to 3,489,423.72, 5,234,135.64 and 965,079 is: 1,447,618.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489,423.72 : 5,234,135.64 = 965,079 : x
  2. Step 2: Convert to fraction form
    3,489,423.72/5,234,135.64 = 965,079/x
  3. Step 3: Cross multiply
    3,489,423.72x = 5,234,135.64 × 965,079
  4. Step 4: Simplify right side
    3,489,423.72x = 5,051,354,389,315.56
  5. Step 5: Solve for x
    x = 5,051,354,389,315.56/3,489,423.72
  6. Step 6: Final answer
    x = 1,447,618.52

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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.