Home / 400,834.38-553,014.14-228,628.61

Finding the Fourth Proportional to 400,834.38, 553,014.14 and 228,628.61

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Solution

The fourth proportional to 400,834.38, 553,014.14 and 228,628.61 is: 315,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,834.38 : 553,014.14 = 228,628.61 : x
  2. Step 2: Convert to fraction form
    400,834.38/553,014.14 = 228,628.61/x
  3. Step 3: Cross multiply
    400,834.38x = 553,014.14 × 228,628.61
  4. Step 4: Simplify right side
    400,834.38x = 126,434,850,230.33
  5. Step 5: Solve for x
    x = 126,434,850,230.33/400,834.38
  6. Step 6: Final answer
    x = 315,429.16

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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.