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Finding the Fourth Proportional to 722,097.92, 996,526.26 and 399,808.01

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Solution

The fourth proportional to 722,097.92, 996,526.26 and 399,808.01 is: 551,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,097.92 : 996,526.26 = 399,808.01 : x
  2. Step 2: Convert to fraction form
    722,097.92/996,526.26 = 399,808.01/x
  3. Step 3: Cross multiply
    722,097.92x = 996,526.26 × 399,808.01
  4. Step 4: Simplify right side
    722,097.92x = 398,419,183,414.66
  5. Step 5: Solve for x
    x = 398,419,183,414.66/722,097.92
  6. Step 6: Final answer
    x = 551,752.29

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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.