Home / 400,786.07-553,071.15-228,713.54

Finding the Fourth Proportional to 400,786.07, 553,071.15 and 228,713.54

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Solution

The fourth proportional to 400,786.07, 553,071.15 and 228,713.54 is: 315,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,786.07 : 553,071.15 = 228,713.54 : x
  2. Step 2: Convert to fraction form
    400,786.07/553,071.15 = 228,713.54/x
  3. Step 3: Cross multiply
    400,786.07x = 553,071.15 × 228,713.54
  4. Step 4: Simplify right side
    400,786.07x = 126,494,857,823.02
  5. Step 5: Solve for x
    x = 126,494,857,823.02/400,786.07
  6. Step 6: Final answer
    x = 315,616.91

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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.