Home / 1,279,476.56-1,919,609.04-920,458.64

Finding the Fourth Proportional to 1,279,476.56, 1,919,609.04 and 920,458.64

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Solution

The fourth proportional to 1,279,476.56, 1,919,609.04 and 920,458.64 is: 1,380,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,476.56 : 1,919,609.04 = 920,458.64 : x
  2. Step 2: Convert to fraction form
    1,279,476.56/1,919,609.04 = 920,458.64/x
  3. Step 3: Cross multiply
    1,279,476.56x = 1,919,609.04 × 920,458.64
  4. Step 4: Simplify right side
    1,279,476.56x = 1,766,920,726,290.11
  5. Step 5: Solve for x
    x = 1,766,920,726,290.11/1,279,476.56
  6. Step 6: Final answer
    x = 1,380,971.55

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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.