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Finding the Fourth Proportional to 479,464.96, 661,677.56 and 261,685.56

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Solution

The fourth proportional to 479,464.96, 661,677.56 and 261,685.56 is: 361,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,464.96 : 661,677.56 = 261,685.56 : x
  2. Step 2: Convert to fraction form
    479,464.96/661,677.56 = 261,685.56/x
  3. Step 3: Cross multiply
    479,464.96x = 661,677.56 × 261,685.56
  4. Step 4: Simplify right side
    479,464.96x = 173,151,462,828.03
  5. Step 5: Solve for x
    x = 173,151,462,828.03/479,464.96
  6. Step 6: Final answer
    x = 361,134.76

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1.5x scale

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.