Home / 400,620.74-552,887.32-228,542.49

Finding the Fourth Proportional to 400,620.74, 552,887.32 and 228,542.49

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Solution

The fourth proportional to 400,620.74, 552,887.32 and 228,542.49 is: 315,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,620.74 : 552,887.32 = 228,542.49 : x
  2. Step 2: Convert to fraction form
    400,620.74/552,887.32 = 228,542.49/x
  3. Step 3: Cross multiply
    400,620.74x = 552,887.32 × 228,542.49
  4. Step 4: Simplify right side
    400,620.74x = 126,358,243,104.39
  5. Step 5: Solve for x
    x = 126,358,243,104.39/400,620.74
  6. Step 6: Final answer
    x = 315,406.15

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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.