Home / 398,826.64-550,355.88-219,982.48

Finding the Fourth Proportional to 398,826.64, 550,355.88 and 219,982.48

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Solution

The fourth proportional to 398,826.64, 550,355.88 and 219,982.48 is: 303,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,826.64 : 550,355.88 = 219,982.48 : x
  2. Step 2: Convert to fraction form
    398,826.64/550,355.88 = 219,982.48/x
  3. Step 3: Cross multiply
    398,826.64x = 550,355.88 × 219,982.48
  4. Step 4: Simplify right side
    398,826.64x = 121,068,651,364.98
  5. Step 5: Solve for x
    x = 121,068,651,364.98/398,826.64
  6. Step 6: Final answer
    x = 303,562.10

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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.