Home / 905,669.75-1,250,920.40-660,265.88

Finding the Fourth Proportional to 905,669.75, 1,250,920.40 and 660,265.88

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Solution

The fourth proportional to 905,669.75, 1,250,920.40 and 660,265.88 is: 911,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,669.75 : 1,250,920.40 = 660,265.88 : x
  2. Step 2: Convert to fraction form
    905,669.75/1,250,920.40 = 660,265.88/x
  3. Step 3: Cross multiply
    905,669.75x = 1,250,920.40 × 660,265.88
  4. Step 4: Simplify right side
    905,669.75x = 825,940,058,715.95
  5. Step 5: Solve for x
    x = 825,940,058,715.95/905,669.75
  6. Step 6: Final answer
    x = 911,966.04

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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.