Home / 397,619.20-548,664.60-268,837.84

Finding the Fourth Proportional to 397,619.20, 548,664.60 and 268,837.84

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Solution

The fourth proportional to 397,619.20, 548,664.60 and 268,837.84 is: 370,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,619.20 : 548,664.60 = 268,837.84 : x
  2. Step 2: Convert to fraction form
    397,619.20/548,664.60 = 268,837.84/x
  3. Step 3: Cross multiply
    397,619.20x = 548,664.60 × 268,837.84
  4. Step 4: Simplify right side
    397,619.20x = 147,501,805,948.46
  5. Step 5: Solve for x
    x = 147,501,805,948.46/397,619.20
  6. Step 6: Final answer
    x = 370,962.48

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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.