Home / 690,892.81-1,036,339.21-269,873.44

Finding the Fourth Proportional to 690,892.81, 1,036,339.21 and 269,873.44

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Solution

The fourth proportional to 690,892.81, 1,036,339.21 and 269,873.44 is: 404,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,892.81 : 1,036,339.21 = 269,873.44 : x
  2. Step 2: Convert to fraction form
    690,892.81/1,036,339.21 = 269,873.44/x
  3. Step 3: Cross multiply
    690,892.81x = 1,036,339.21 × 269,873.44
  4. Step 4: Simplify right side
    690,892.81x = 279,680,425,356.08
  5. Step 5: Solve for x
    x = 279,680,425,356.08/690,892.81
  6. Step 6: Final answer
    x = 404,810.16

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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.