Home / 905,666.25-1,250,915.57-660,262.38

Finding the Fourth Proportional to 905,666.25, 1,250,915.57 and 660,262.38

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Solution

The fourth proportional to 905,666.25, 1,250,915.57 and 660,262.38 is: 911,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,666.25 : 1,250,915.57 = 660,262.38 : x
  2. Step 2: Convert to fraction form
    905,666.25/1,250,915.57 = 660,262.38/x
  3. Step 3: Cross multiply
    905,666.25x = 1,250,915.57 × 660,262.38
  4. Step 4: Simplify right side
    905,666.25x = 825,932,491,427.26
  5. Step 5: Solve for x
    x = 825,932,491,427.26/905,666.25
  6. Step 6: Final answer
    x = 911,961.21

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1.5x scale

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.