Home / 1,279,190.52-1,918,610.70-380,770.92

Finding the Fourth Proportional to 1,279,190.52, 1,918,610.70 and 380,770.92

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Solution

The fourth proportional to 1,279,190.52, 1,918,610.70 and 380,770.92 is: 571,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,190.52 : 1,918,610.70 = 380,770.92 : x
  2. Step 2: Convert to fraction form
    1,279,190.52/1,918,610.70 = 380,770.92/x
  3. Step 3: Cross multiply
    1,279,190.52x = 1,918,610.70 × 380,770.92
  4. Step 4: Simplify right side
    1,279,190.52x = 730,551,161,360.84
  5. Step 5: Solve for x
    x = 730,551,161,360.84/1,279,190.52
  6. Step 6: Final answer
    x = 571,104.26

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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.