Home / 494,719.80-742,079.70-228,999.30

Finding the Fourth Proportional to 494,719.80, 742,079.70 and 228,999.30

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Solution

The fourth proportional to 494,719.80, 742,079.70 and 228,999.30 is: 343,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,719.80 : 742,079.70 = 228,999.30 : x
  2. Step 2: Convert to fraction form
    494,719.80/742,079.70 = 228,999.30/x
  3. Step 3: Cross multiply
    494,719.80x = 742,079.70 × 228,999.30
  4. Step 4: Simplify right side
    494,719.80x = 169,935,731,844.21
  5. Step 5: Solve for x
    x = 169,935,731,844.21/494,719.80
  6. Step 6: Final answer
    x = 343,498.95

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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.