Home / 1,432,245.22-1,976,458.94-787,665.40

Finding the Fourth Proportional to 1,432,245.22, 1,976,458.94 and 787,665.40

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Solution

The fourth proportional to 1,432,245.22, 1,976,458.94 and 787,665.40 is: 1,086,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,245.22 : 1,976,458.94 = 787,665.40 : x
  2. Step 2: Convert to fraction form
    1,432,245.22/1,976,458.94 = 787,665.40/x
  3. Step 3: Cross multiply
    1,432,245.22x = 1,976,458.94 × 787,665.40
  4. Step 4: Simplify right side
    1,432,245.22x = 1,556,788,317,620.35
  5. Step 5: Solve for x
    x = 1,556,788,317,620.35/1,432,245.22
  6. Step 6: Final answer
    x = 1,086,956.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.