Home / 463,362.18-639,249.78-281,928.66

Finding the Fourth Proportional to 463,362.18, 639,249.78 and 281,928.66

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Solution

The fourth proportional to 463,362.18, 639,249.78 and 281,928.66 is: 388,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,362.18 : 639,249.78 = 281,928.66 : x
  2. Step 2: Convert to fraction form
    463,362.18/639,249.78 = 281,928.66/x
  3. Step 3: Cross multiply
    463,362.18x = 639,249.78 × 281,928.66
  4. Step 4: Simplify right side
    463,362.18x = 180,222,833,880.70
  5. Step 5: Solve for x
    x = 180,222,833,880.70/463,362.18
  6. Step 6: Final answer
    x = 388,945.93

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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.