Home / 1,279,189.52-1,918,609.20-380,769.92

Finding the Fourth Proportional to 1,279,189.52, 1,918,609.20 and 380,769.92

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Solution

The fourth proportional to 1,279,189.52, 1,918,609.20 and 380,769.92 is: 571,102.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,189.52 : 1,918,609.20 = 380,769.92 : x
  2. Step 2: Convert to fraction form
    1,279,189.52/1,918,609.20 = 380,769.92/x
  3. Step 3: Cross multiply
    1,279,189.52x = 1,918,609.20 × 380,769.92
  4. Step 4: Simplify right side
    1,279,189.52x = 730,548,671,595.26
  5. Step 5: Solve for x
    x = 730,548,671,595.26/1,279,189.52
  6. Step 6: Final answer
    x = 571,102.76

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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.