Home / 681,859.29-1,022,788.84-647,764.89

Finding the Fourth Proportional to 681,859.29, 1,022,788.84 and 647,764.89

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Solution

The fourth proportional to 681,859.29, 1,022,788.84 and 647,764.89 is: 971,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,859.29 : 1,022,788.84 = 647,764.89 : x
  2. Step 2: Convert to fraction form
    681,859.29/1,022,788.84 = 647,764.89/x
  3. Step 3: Cross multiply
    681,859.29x = 1,022,788.84 × 647,764.89
  4. Step 4: Simplify right side
    681,859.29x = 662,526,700,435.83
  5. Step 5: Solve for x
    x = 662,526,700,435.83/681,859.29
  6. Step 6: Final answer
    x = 971,647.24

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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.