Home / 1,279,125.99-1,918,514.03-380,706.39

Finding the Fourth Proportional to 1,279,125.99, 1,918,514.03 and 380,706.39

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Solution

The fourth proportional to 1,279,125.99, 1,918,514.03 and 380,706.39 is: 571,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,125.99 : 1,918,514.03 = 380,706.39 : x
  2. Step 2: Convert to fraction form
    1,279,125.99/1,918,514.03 = 380,706.39/x
  3. Step 3: Cross multiply
    1,279,125.99x = 1,918,514.03 × 380,706.39
  4. Step 4: Simplify right side
    1,279,125.99x = 730,390,548,622.12
  5. Step 5: Solve for x
    x = 730,390,548,622.12/1,279,125.99
  6. Step 6: Final answer
    x = 571,007.51

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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.