Home / 400,912.37-553,257.44-219,624.05

Finding the Fourth Proportional to 400,912.37, 553,257.44 and 219,624.05

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Solution

The fourth proportional to 400,912.37, 553,257.44 and 219,624.05 is: 303,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,912.37 : 553,257.44 = 219,624.05 : x
  2. Step 2: Convert to fraction form
    400,912.37/553,257.44 = 219,624.05/x
  3. Step 3: Cross multiply
    400,912.37x = 553,257.44 × 219,624.05
  4. Step 4: Simplify right side
    400,912.37x = 121,508,636,899.15
  5. Step 5: Solve for x
    x = 121,508,636,899.15/400,912.37
  6. Step 6: Final answer
    x = 303,080.29

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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.