Home / 741,643.28-1,111,805.12-268,223.36

Finding the Fourth Proportional to 741,643.28, 1,111,805.12 and 268,223.36

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Solution

The fourth proportional to 741,643.28, 1,111,805.12 and 268,223.36 is: 402,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,643.28 : 1,111,805.12 = 268,223.36 : x
  2. Step 2: Convert to fraction form
    741,643.28/1,111,805.12 = 268,223.36/x
  3. Step 3: Cross multiply
    741,643.28x = 1,111,805.12 × 268,223.36
  4. Step 4: Simplify right side
    741,643.28x = 298,212,104,951.60
  5. Step 5: Solve for x
    x = 298,212,104,951.60/741,643.28
  6. Step 6: Final answer
    x = 402,096.42

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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.