Home / 483,625.38-668,086.03-387,467.78

Finding the Fourth Proportional to 483,625.38, 668,086.03 and 387,467.78

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Solution

The fourth proportional to 483,625.38, 668,086.03 and 387,467.78 is: 535,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,625.38 : 668,086.03 = 387,467.78 : x
  2. Step 2: Convert to fraction form
    483,625.38/668,086.03 = 387,467.78/x
  3. Step 3: Cross multiply
    483,625.38x = 668,086.03 × 387,467.78
  4. Step 4: Simplify right side
    483,625.38x = 258,861,808,037.02
  5. Step 5: Solve for x
    x = 258,861,808,037.02/483,625.38
  6. Step 6: Final answer
    x = 535,252.73

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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.