Home / 1,102,057.20-1,649,932.20-678,481.20

Finding the Fourth Proportional to 1,102,057.20, 1,649,932.20 and 678,481.20

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Solution

The fourth proportional to 1,102,057.20, 1,649,932.20 and 678,481.20 is: 1,015,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,057.20 : 1,649,932.20 = 678,481.20 : x
  2. Step 2: Convert to fraction form
    1,102,057.20/1,649,932.20 = 678,481.20/x
  3. Step 3: Cross multiply
    1,102,057.20x = 1,649,932.20 × 678,481.20
  4. Step 4: Simplify right side
    1,102,057.20x = 1,119,447,978,974.64
  5. Step 5: Solve for x
    x = 1,119,447,978,974.64/1,102,057.20
  6. Step 6: Final answer
    x = 1,015,780.29

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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.