Home / 1,279,662.48-1,919,296.84-426,749.04

Finding the Fourth Proportional to 1,279,662.48, 1,919,296.84 and 426,749.04

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Solution

The fourth proportional to 1,279,662.48, 1,919,296.84 and 426,749.04 is: 640,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,662.48 : 1,919,296.84 = 426,749.04 : x
  2. Step 2: Convert to fraction form
    1,279,662.48/1,919,296.84 = 426,749.04/x
  3. Step 3: Cross multiply
    1,279,662.48x = 1,919,296.84 × 426,749.04
  4. Step 4: Simplify right side
    1,279,662.48x = 819,058,083,945.03
  5. Step 5: Solve for x
    x = 819,058,083,945.03/1,279,662.48
  6. Step 6: Final answer
    x = 640,057.90

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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.