Home / 1,107,427.42-1,661,348.07-762,664.86

Finding the Fourth Proportional to 1,107,427.42, 1,661,348.07 and 762,664.86

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Solution

The fourth proportional to 1,107,427.42, 1,661,348.07 and 762,664.86 is: 1,144,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,427.42 : 1,661,348.07 = 762,664.86 : x
  2. Step 2: Convert to fraction form
    1,107,427.42/1,661,348.07 = 762,664.86/x
  3. Step 3: Cross multiply
    1,107,427.42x = 1,661,348.07 × 762,664.86
  4. Step 4: Simplify right side
    1,107,427.42x = 1,267,051,793,217.82
  5. Step 5: Solve for x
    x = 1,267,051,793,217.82/1,107,427.42
  6. Step 6: Final answer
    x = 1,144,139.81

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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.