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Finding the Fourth Proportional to 440,649.66, 660,770.36 and 356,202.30

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Solution

The fourth proportional to 440,649.66, 660,770.36 and 356,202.30 is: 534,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,649.66 : 660,770.36 = 356,202.30 : x
  2. Step 2: Convert to fraction form
    440,649.66/660,770.36 = 356,202.30/x
  3. Step 3: Cross multiply
    440,649.66x = 660,770.36 × 356,202.30
  4. Step 4: Simplify right side
    440,649.66x = 235,367,922,003.83
  5. Step 5: Solve for x
    x = 235,367,922,003.83/440,649.66
  6. Step 6: Final answer
    x = 534,138.44

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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.