Home / 905,669.25-1,250,919.71-660,265.38

Finding the Fourth Proportional to 905,669.25, 1,250,919.71 and 660,265.38

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Solution

The fourth proportional to 905,669.25, 1,250,919.71 and 660,265.38 is: 911,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,669.25 : 1,250,919.71 = 660,265.38 : x
  2. Step 2: Convert to fraction form
    905,669.25/1,250,919.71 = 660,265.38/x
  3. Step 3: Cross multiply
    905,669.25x = 1,250,919.71 × 660,265.38
  4. Step 4: Simplify right side
    905,669.25x = 825,938,977,672.64
  5. Step 5: Solve for x
    x = 825,938,977,672.64/905,669.25
  6. Step 6: Final answer
    x = 911,965.35

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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.