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Finding the Fourth Proportional to 580,455.66, 870,932.97 and 300,169.74

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Solution

The fourth proportional to 580,455.66, 870,932.97 and 300,169.74 is: 450,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,455.66 : 870,932.97 = 300,169.74 : x
  2. Step 2: Convert to fraction form
    580,455.66/870,932.97 = 300,169.74/x
  3. Step 3: Cross multiply
    580,455.66x = 870,932.97 × 300,169.74
  4. Step 4: Simplify right side
    580,455.66x = 261,427,723,162.33
  5. Step 5: Solve for x
    x = 261,427,723,162.33/580,455.66
  6. Step 6: Final answer
    x = 450,383.62

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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.