Home / 421,828.94-582,122.40-228,236.06

Finding the Fourth Proportional to 421,828.94, 582,122.40 and 228,236.06

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Solution

The fourth proportional to 421,828.94, 582,122.40 and 228,236.06 is: 314,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,828.94 : 582,122.40 = 228,236.06 : x
  2. Step 2: Convert to fraction form
    421,828.94/582,122.40 = 228,236.06/x
  3. Step 3: Cross multiply
    421,828.94x = 582,122.40 × 228,236.06
  4. Step 4: Simplify right side
    421,828.94x = 132,861,323,013.74
  5. Step 5: Solve for x
    x = 132,861,323,013.74/421,828.94
  6. Step 6: Final answer
    x = 314,964.93

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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.