Home / 691,112.25-1,036,240.70-269,892.81

Finding the Fourth Proportional to 691,112.25, 1,036,240.70 and 269,892.81

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Solution

The fourth proportional to 691,112.25, 1,036,240.70 and 269,892.81 is: 404,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,112.25 : 1,036,240.70 = 269,892.81 : x
  2. Step 2: Convert to fraction form
    691,112.25/1,036,240.70 = 269,892.81/x
  3. Step 3: Cross multiply
    691,112.25x = 1,036,240.70 × 269,892.81
  4. Step 4: Simplify right side
    691,112.25x = 279,673,916,275.24
  5. Step 5: Solve for x
    x = 279,673,916,275.24/691,112.25
  6. Step 6: Final answer
    x = 404,672.20

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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.