Home / 398,826.60-598,589.82-221,533.80

Finding the Fourth Proportional to 398,826.60, 598,589.82 and 221,533.80

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Solution

The fourth proportional to 398,826.60, 598,589.82 and 221,533.80 is: 332,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,826.60 : 598,589.82 = 221,533.80 : x
  2. Step 2: Convert to fraction form
    398,826.60/598,589.82 = 221,533.80/x
  3. Step 3: Cross multiply
    398,826.60x = 598,589.82 × 221,533.80
  4. Step 4: Simplify right side
    398,826.60x = 132,607,877,465.92
  5. Step 5: Solve for x
    x = 132,607,877,465.92/398,826.60
  6. Step 6: Final answer
    x = 332,495.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.