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Finding the Fourth Proportional to 458,083.58, 687,348.92 and 324,009.09

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Solution

The fourth proportional to 458,083.58, 687,348.92 and 324,009.09 is: 486,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,083.58 : 687,348.92 = 324,009.09 : x
  2. Step 2: Convert to fraction form
    458,083.58/687,348.92 = 324,009.09/x
  3. Step 3: Cross multiply
    458,083.58x = 687,348.92 × 324,009.09
  4. Step 4: Simplify right side
    458,083.58x = 222,707,298,891.71
  5. Step 5: Solve for x
    x = 222,707,298,891.71/458,083.58
  6. Step 6: Final answer
    x = 486,171.76

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1.5x scale

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.