Home / 1,287,924.73-1,777,247.08-714,919.79

Finding the Fourth Proportional to 1,287,924.73, 1,777,247.08 and 714,919.79

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Solution

The fourth proportional to 1,287,924.73, 1,777,247.08 and 714,919.79 is: 986,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,924.73 : 1,777,247.08 = 714,919.79 : x
  2. Step 2: Convert to fraction form
    1,287,924.73/1,777,247.08 = 714,919.79/x
  3. Step 3: Cross multiply
    1,287,924.73x = 1,777,247.08 × 714,919.79
  4. Step 4: Simplify right side
    1,287,924.73x = 1,270,589,111,867.53
  5. Step 5: Solve for x
    x = 1,270,589,111,867.53/1,287,924.73
  6. Step 6: Final answer
    x = 986,539.88

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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.