Home / 1,279,458.92-1,918,546.62-426,230.60

Finding the Fourth Proportional to 1,279,458.92, 1,918,546.62 and 426,230.60

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Solution

The fourth proportional to 1,279,458.92, 1,918,546.62 and 426,230.60 is: 639,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,458.92 : 1,918,546.62 = 426,230.60 : x
  2. Step 2: Convert to fraction form
    1,279,458.92/1,918,546.62 = 426,230.60/x
  3. Step 3: Cross multiply
    1,279,458.92x = 1,918,546.62 × 426,230.60
  4. Step 4: Simplify right side
    1,279,458.92x = 817,743,267,377.84
  5. Step 5: Solve for x
    x = 817,743,267,377.84/1,279,458.92
  6. Step 6: Final answer
    x = 639,132.10

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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.