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Finding the Fourth Proportional to 722,092.44, 996,518.73 and 399,802.56

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Solution

The fourth proportional to 722,092.44, 996,518.73 and 399,802.56 is: 551,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,092.44 : 996,518.73 = 399,802.56 : x
  2. Step 2: Convert to fraction form
    722,092.44/996,518.73 = 399,802.56/x
  3. Step 3: Cross multiply
    722,092.44x = 996,518.73 × 399,802.56
  4. Step 4: Simplify right side
    722,092.44x = 398,410,739,341.95
  5. Step 5: Solve for x
    x = 398,410,739,341.95/722,092.44
  6. Step 6: Final answer
    x = 551,744.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.