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Finding the Fourth Proportional to 644,401.20, 965,651.40 and 467,281.20

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Solution

The fourth proportional to 644,401.20, 965,651.40 and 467,281.20 is: 700,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,401.20 : 965,651.40 = 467,281.20 : x
  2. Step 2: Convert to fraction form
    644,401.20/965,651.40 = 467,281.20/x
  3. Step 3: Cross multiply
    644,401.20x = 965,651.40 × 467,281.20
  4. Step 4: Simplify right side
    644,401.20x = 451,230,744,973.68
  5. Step 5: Solve for x
    x = 451,230,744,973.68/644,401.20
  6. Step 6: Final answer
    x = 700,232.63

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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.