Home / 905,670.25-1,250,921.09-660,266.38

Finding the Fourth Proportional to 905,670.25, 1,250,921.09 and 660,266.38

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Solution

The fourth proportional to 905,670.25, 1,250,921.09 and 660,266.38 is: 911,966.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,670.25 : 1,250,921.09 = 660,266.38 : x
  2. Step 2: Convert to fraction form
    905,670.25/1,250,921.09 = 660,266.38/x
  3. Step 3: Cross multiply
    905,670.25x = 1,250,921.09 × 660,266.38
  4. Step 4: Simplify right side
    905,670.25x = 825,941,139,759.95
  5. Step 5: Solve for x
    x = 825,941,139,759.95/905,670.25
  6. Step 6: Final answer
    x = 911,966.73

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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.