Home / 494,664.80-742,025.91-139,649.09

Finding the Fourth Proportional to 494,664.80, 742,025.91 and 139,649.09

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Solution

The fourth proportional to 494,664.80, 742,025.91 and 139,649.09 is: 209,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,664.80 : 742,025.91 = 139,649.09 : x
  2. Step 2: Convert to fraction form
    494,664.80/742,025.91 = 139,649.09/x
  3. Step 3: Cross multiply
    494,664.80x = 742,025.91 × 139,649.09
  4. Step 4: Simplify right side
    494,664.80x = 103,623,243,087.92
  5. Step 5: Solve for x
    x = 103,623,243,087.92/494,664.80
  6. Step 6: Final answer
    x = 209,481.74

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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.