Home / 498,838.05-748,367.64-143,824.41

Finding the Fourth Proportional to 498,838.05, 748,367.64 and 143,824.41

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Solution

The fourth proportional to 498,838.05, 748,367.64 and 143,824.41 is: 215,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,838.05 : 748,367.64 = 143,824.41 : x
  2. Step 2: Convert to fraction form
    498,838.05/748,367.64 = 143,824.41/x
  3. Step 3: Cross multiply
    498,838.05x = 748,367.64 × 143,824.41
  4. Step 4: Simplify right side
    498,838.05x = 107,633,534,286.09
  5. Step 5: Solve for x
    x = 107,633,534,286.09/498,838.05
  6. Step 6: Final answer
    x = 215,768.49

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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.