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Finding the Fourth Proportional to 539,880.48, 809,118.30 and 219,659.13

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Solution

The fourth proportional to 539,880.48, 809,118.30 and 219,659.13 is: 329,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,880.48 : 809,118.30 = 219,659.13 : x
  2. Step 2: Convert to fraction form
    539,880.48/809,118.30 = 219,659.13/x
  3. Step 3: Cross multiply
    539,880.48x = 809,118.30 × 219,659.13
  4. Step 4: Simplify right side
    539,880.48x = 177,730,221,845.08
  5. Step 5: Solve for x
    x = 177,730,221,845.08/539,880.48
  6. Step 6: Final answer
    x = 329,202.90

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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.