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Finding the Fourth Proportional to 519,072.04, 778,640.46 and 219,496.60

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Solution

The fourth proportional to 519,072.04, 778,640.46 and 219,496.60 is: 329,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,072.04 : 778,640.46 = 219,496.60 : x
  2. Step 2: Convert to fraction form
    519,072.04/778,640.46 = 219,496.60/x
  3. Step 3: Cross multiply
    519,072.04x = 778,640.46 × 219,496.60
  4. Step 4: Simplify right side
    519,072.04x = 170,908,933,592.44
  5. Step 5: Solve for x
    x = 170,908,933,592.44/519,072.04
  6. Step 6: Final answer
    x = 329,258.60

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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.