Home / 690,891.12-1,036,336.68-269,871.75

Finding the Fourth Proportional to 690,891.12, 1,036,336.68 and 269,871.75

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Solution

The fourth proportional to 690,891.12, 1,036,336.68 and 269,871.75 is: 404,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,891.12 : 1,036,336.68 = 269,871.75 : x
  2. Step 2: Convert to fraction form
    690,891.12/1,036,336.68 = 269,871.75/x
  3. Step 3: Cross multiply
    690,891.12x = 1,036,336.68 × 269,871.75
  4. Step 4: Simplify right side
    690,891.12x = 279,677,993,420.79
  5. Step 5: Solve for x
    x = 279,677,993,420.79/690,891.12
  6. Step 6: Final answer
    x = 404,807.63

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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.