Home / 490,939.78-734,834.50-262,664.34

Finding the Fourth Proportional to 490,939.78, 734,834.50 and 262,664.34

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Solution

The fourth proportional to 490,939.78, 734,834.50 and 262,664.34 is: 393,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,939.78 : 734,834.50 = 262,664.34 : x
  2. Step 2: Convert to fraction form
    490,939.78/734,834.50 = 262,664.34/x
  3. Step 3: Cross multiply
    490,939.78x = 734,834.50 × 262,664.34
  4. Step 4: Simplify right side
    490,939.78x = 193,014,820,132.16
  5. Step 5: Solve for x
    x = 193,014,820,132.16/490,939.78
  6. Step 6: Final answer
    x = 393,153.76

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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.