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Finding the Fourth Proportional to 661,777.44, 992,994.21 and 262,409.64

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Solution

The fourth proportional to 661,777.44, 992,994.21 and 262,409.64 is: 393,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,777.44 : 992,994.21 = 262,409.64 : x
  2. Step 2: Convert to fraction form
    661,777.44/992,994.21 = 262,409.64/x
  3. Step 3: Cross multiply
    661,777.44x = 992,994.21 × 262,409.64
  4. Step 4: Simplify right side
    661,777.44x = 260,571,253,168.18
  5. Step 5: Solve for x
    x = 260,571,253,168.18/661,777.44
  6. Step 6: Final answer
    x = 393,744.54

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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.