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Finding the Fourth Proportional to 505,425.76, 758,504.45 and 197,723.13

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Solution

The fourth proportional to 505,425.76, 758,504.45 and 197,723.13 is: 296,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,425.76 : 758,504.45 = 197,723.13 : x
  2. Step 2: Convert to fraction form
    505,425.76/758,504.45 = 197,723.13/x
  3. Step 3: Cross multiply
    505,425.76x = 758,504.45 × 197,723.13
  4. Step 4: Simplify right side
    505,425.76x = 149,973,873,972.93
  5. Step 5: Solve for x
    x = 149,973,873,972.93/505,425.76
  6. Step 6: Final answer
    x = 296,727.80

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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.