Home / 397,682.28-548,071.38-372,429.72

Finding the Fourth Proportional to 397,682.28, 548,071.38 and 372,429.72

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Solution

The fourth proportional to 397,682.28, 548,071.38 and 372,429.72 is: 513,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,682.28 : 548,071.38 = 372,429.72 : x
  2. Step 2: Convert to fraction form
    397,682.28/548,071.38 = 372,429.72/x
  3. Step 3: Cross multiply
    397,682.28x = 548,071.38 × 372,429.72
  4. Step 4: Simplify right side
    397,682.28x = 204,118,070,593.41
  5. Step 5: Solve for x
    x = 204,118,070,593.41/397,682.28
  6. Step 6: Final answer
    x = 513,269.21

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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.