Home / 1,320,449.70-1,978,378.20-609,018.60

Finding the Fourth Proportional to 1,320,449.70, 1,978,378.20 and 609,018.60

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Solution

The fourth proportional to 1,320,449.70, 1,978,378.20 and 609,018.60 is: 912,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,449.70 : 1,978,378.20 = 609,018.60 : x
  2. Step 2: Convert to fraction form
    1,320,449.70/1,978,378.20 = 609,018.60/x
  3. Step 3: Cross multiply
    1,320,449.70x = 1,978,378.20 × 609,018.60
  4. Step 4: Simplify right side
    1,320,449.70x = 1,204,869,121,634.52
  5. Step 5: Solve for x
    x = 1,204,869,121,634.52/1,320,449.70
  6. Step 6: Final answer
    x = 912,468.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.