Home / 1,327,223.20-1,989,279.60-994,410.40

Finding the Fourth Proportional to 1,327,223.20, 1,989,279.60 and 994,410.40

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Solution

The fourth proportional to 1,327,223.20, 1,989,279.60 and 994,410.40 is: 1,490,450.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,223.20 : 1,989,279.60 = 994,410.40 : x
  2. Step 2: Convert to fraction form
    1,327,223.20/1,989,279.60 = 994,410.40/x
  3. Step 3: Cross multiply
    1,327,223.20x = 1,989,279.60 × 994,410.40
  4. Step 4: Simplify right side
    1,327,223.20x = 1,978,160,322,747.84
  5. Step 5: Solve for x
    x = 1,978,160,322,747.84/1,327,223.20
  6. Step 6: Final answer
    x = 1,490,450.38

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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.