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Finding the Fourth Proportional to 484,099.80, 725,485.39 and 306,288.50

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Solution

The fourth proportional to 484,099.80, 725,485.39 and 306,288.50 is: 459,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,099.80 : 725,485.39 = 306,288.50 : x
  2. Step 2: Convert to fraction form
    484,099.80/725,485.39 = 306,288.50/x
  3. Step 3: Cross multiply
    484,099.80x = 725,485.39 × 306,288.50
  4. Step 4: Simplify right side
    484,099.80x = 222,207,829,295.58
  5. Step 5: Solve for x
    x = 222,207,829,295.58/484,099.80
  6. Step 6: Final answer
    x = 459,012.44

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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.