Home / 397,509.50-548,513.24-268,728.18

Finding the Fourth Proportional to 397,509.50, 548,513.24 and 268,728.18

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Solution

The fourth proportional to 397,509.50, 548,513.24 and 268,728.18 is: 370,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,509.50 : 548,513.24 = 268,728.18 : x
  2. Step 2: Convert to fraction form
    397,509.50/548,513.24 = 268,728.18/x
  3. Step 3: Cross multiply
    397,509.50x = 548,513.24 × 268,728.18
  4. Step 4: Simplify right side
    397,509.50x = 147,400,964,691.10
  5. Step 5: Solve for x
    x = 147,400,964,691.10/397,509.50
  6. Step 6: Final answer
    x = 370,811.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.