Home / 3,171,839.82-4,757,718.48-775,705.20

Finding the Fourth Proportional to 3,171,839.82, 4,757,718.48 and 775,705.20

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Solution

The fourth proportional to 3,171,839.82, 4,757,718.48 and 775,705.20 is: 1,163,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,839.82 : 4,757,718.48 = 775,705.20 : x
  2. Step 2: Convert to fraction form
    3,171,839.82/4,757,718.48 = 775,705.20/x
  3. Step 3: Cross multiply
    3,171,839.82x = 4,757,718.48 × 775,705.20
  4. Step 4: Simplify right side
    3,171,839.82x = 3,690,586,965,072.10
  5. Step 5: Solve for x
    x = 3,690,586,965,072.10/3,171,839.82
  6. Step 6: Final answer
    x = 1,163,547.71

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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.