Home / 422,157.83-582,582.51-228,569.72

Finding the Fourth Proportional to 422,157.83, 582,582.51 and 228,569.72

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Solution

The fourth proportional to 422,157.83, 582,582.51 and 228,569.72 is: 315,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,157.83 : 582,582.51 = 228,569.72 : x
  2. Step 2: Convert to fraction form
    422,157.83/582,582.51 = 228,569.72/x
  3. Step 3: Cross multiply
    422,157.83x = 582,582.51 × 228,569.72
  4. Step 4: Simplify right side
    422,157.83x = 133,160,718,274.69
  5. Step 5: Solve for x
    x = 133,160,718,274.69/422,157.83
  6. Step 6: Final answer
    x = 315,428.76

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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.