Home / 427,617.37-640,983.14-351,942.38

Finding the Fourth Proportional to 427,617.37, 640,983.14 and 351,942.38

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Solution

The fourth proportional to 427,617.37, 640,983.14 and 351,942.38 is: 527,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,617.37 : 640,983.14 = 351,942.38 : x
  2. Step 2: Convert to fraction form
    427,617.37/640,983.14 = 351,942.38/x
  3. Step 3: Cross multiply
    427,617.37x = 640,983.14 × 351,942.38
  4. Step 4: Simplify right side
    427,617.37x = 225,589,131,831.47
  5. Step 5: Solve for x
    x = 225,589,131,831.47/427,617.37
  6. Step 6: Final answer
    x = 527,549.04

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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.