Home / 400,910.72-553,118.50-228,704.46

Finding the Fourth Proportional to 400,910.72, 553,118.50 and 228,704.46

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Solution

The fourth proportional to 400,910.72, 553,118.50 and 228,704.46 is: 315,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,910.72 : 553,118.50 = 228,704.46 : x
  2. Step 2: Convert to fraction form
    400,910.72/553,118.50 = 228,704.46/x
  3. Step 3: Cross multiply
    400,910.72x = 553,118.50 × 228,704.46
  4. Step 4: Simplify right side
    400,910.72x = 126,500,668,538.26
  5. Step 5: Solve for x
    x = 126,500,668,538.26/400,910.72
  6. Step 6: Final answer
    x = 315,533.26

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1.5x scale

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.