Home / 690,185.60-1,035,861.60-269,763.20

Finding the Fourth Proportional to 690,185.60, 1,035,861.60 and 269,763.20

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Solution

The fourth proportional to 690,185.60, 1,035,861.60 and 269,763.20 is: 404,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,185.60 : 1,035,861.60 = 269,763.20 : x
  2. Step 2: Convert to fraction form
    690,185.60/1,035,861.60 = 269,763.20/x
  3. Step 3: Cross multiply
    690,185.60x = 1,035,861.60 × 269,763.20
  4. Step 4: Simplify right side
    690,185.60x = 279,437,339,973.12
  5. Step 5: Solve for x
    x = 279,437,339,973.12/690,185.60
  6. Step 6: Final answer
    x = 404,872.75

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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.