Home / 1,321,569-1,823,766.84-717,957

Finding the Fourth Proportional to 1,321,569, 1,823,766.84 and 717,957

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Solution

The fourth proportional to 1,321,569, 1,823,766.84 and 717,957 is: 990,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,569 : 1,823,766.84 = 717,957 : x
  2. Step 2: Convert to fraction form
    1,321,569/1,823,766.84 = 717,957/x
  3. Step 3: Cross multiply
    1,321,569x = 1,823,766.84 × 717,957
  4. Step 4: Simplify right side
    1,321,569x = 1,309,386,169,145.88
  5. Step 5: Solve for x
    x = 1,309,386,169,145.88/1,321,569
  6. Step 6: Final answer
    x = 990,781.54

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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.