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Finding the Fourth Proportional to 484,429.90, 726,558.45 and 306,618.70

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Solution

The fourth proportional to 484,429.90, 726,558.45 and 306,618.70 is: 459,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,429.90 : 726,558.45 = 306,618.70 : x
  2. Step 2: Convert to fraction form
    484,429.90/726,558.45 = 306,618.70/x
  3. Step 3: Cross multiply
    484,429.90x = 726,558.45 × 306,618.70
  4. Step 4: Simplify right side
    484,429.90x = 222,776,407,413.02
  5. Step 5: Solve for x
    x = 222,776,407,413.02/484,429.90
  6. Step 6: Final answer
    x = 459,873.36

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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.