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Finding the Fourth Proportional to 787,996, 1,181,994 and 197,020

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Solution

The fourth proportional to 787,996, 1,181,994 and 197,020 is: 295,530

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,996 : 1,181,994 = 197,020 : x
  2. Step 2: Convert to fraction form
    787,996/1,181,994 = 197,020/x
  3. Step 3: Cross multiply
    787,996x = 1,181,994 × 197,020
  4. Step 4: Simplify right side
    787,996x = 232,876,457,880
  5. Step 5: Solve for x
    x = 232,876,457,880/787,996
  6. Step 6: Final answer
    x = 295,530

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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.