Home / 1,432,199.88-1,976,396.40-787,620.09

Finding the Fourth Proportional to 1,432,199.88, 1,976,396.40 and 787,620.09

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Solution

The fourth proportional to 1,432,199.88, 1,976,396.40 and 787,620.09 is: 1,086,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,199.88 : 1,976,396.40 = 787,620.09 : x
  2. Step 2: Convert to fraction form
    1,432,199.88/1,976,396.40 = 787,620.09/x
  3. Step 3: Cross multiply
    1,432,199.88x = 1,976,396.40 × 787,620.09
  4. Step 4: Simplify right side
    1,432,199.88x = 1,556,649,510,443.68
  5. Step 5: Solve for x
    x = 1,556,649,510,443.68/1,432,199.88
  6. Step 6: Final answer
    x = 1,086,894.04

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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.