Home / 400,709.60-552,899.76-228,623.12

Finding the Fourth Proportional to 400,709.60, 552,899.76 and 228,623.12

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Solution

The fourth proportional to 400,709.60, 552,899.76 and 228,623.12 is: 315,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,709.60 : 552,899.76 = 228,623.12 : x
  2. Step 2: Convert to fraction form
    400,709.60/552,899.76 = 228,623.12/x
  3. Step 3: Cross multiply
    400,709.60x = 552,899.76 × 228,623.12
  4. Step 4: Simplify right side
    400,709.60x = 126,405,668,178.45
  5. Step 5: Solve for x
    x = 126,405,668,178.45/400,709.60
  6. Step 6: Final answer
    x = 315,454.55

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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.