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Finding the Fourth Proportional to 663,295.80, 994,749.30 and 308,224.20

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Solution

The fourth proportional to 663,295.80, 994,749.30 and 308,224.20 is: 462,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,295.80 : 994,749.30 = 308,224.20 : x
  2. Step 2: Convert to fraction form
    663,295.80/994,749.30 = 308,224.20/x
  3. Step 3: Cross multiply
    663,295.80x = 994,749.30 × 308,224.20
  4. Step 4: Simplify right side
    663,295.80x = 306,605,807,193.06
  5. Step 5: Solve for x
    x = 306,605,807,193.06/663,295.80
  6. Step 6: Final answer
    x = 462,245.97

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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.