Home / 1,321,456.25-1,980,166.62-982,859.43

Finding the Fourth Proportional to 1,321,456.25, 1,980,166.62 and 982,859.43

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Solution

The fourth proportional to 1,321,456.25, 1,980,166.62 and 982,859.43 is: 1,472,788.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,456.25 : 1,980,166.62 = 982,859.43 : x
  2. Step 2: Convert to fraction form
    1,321,456.25/1,980,166.62 = 982,859.43/x
  3. Step 3: Cross multiply
    1,321,456.25x = 1,980,166.62 × 982,859.43
  4. Step 4: Simplify right side
    1,321,456.25x = 1,946,225,435,438.23
  5. Step 5: Solve for x
    x = 1,946,225,435,438.23/1,321,456.25
  6. Step 6: Final answer
    x = 1,472,788.41

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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.