Home / 494,186.36-742,099.38-308,378.84

Finding the Fourth Proportional to 494,186.36, 742,099.38 and 308,378.84

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Solution

The fourth proportional to 494,186.36, 742,099.38 and 308,378.84 is: 463,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,186.36 : 742,099.38 = 308,378.84 : x
  2. Step 2: Convert to fraction form
    494,186.36/742,099.38 = 308,378.84/x
  3. Step 3: Cross multiply
    494,186.36x = 742,099.38 × 308,378.84
  4. Step 4: Simplify right side
    494,186.36x = 228,847,745,969.12
  5. Step 5: Solve for x
    x = 228,847,745,969.12/494,186.36
  6. Step 6: Final answer
    x = 463,079.85

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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.