Home / 728,095.82-1,091,285.92-328,268.48

Finding the Fourth Proportional to 728,095.82, 1,091,285.92 and 328,268.48

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Solution

The fourth proportional to 728,095.82, 1,091,285.92 and 328,268.48 is: 492,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,095.82 : 1,091,285.92 = 328,268.48 : x
  2. Step 2: Convert to fraction form
    728,095.82/1,091,285.92 = 328,268.48/x
  3. Step 3: Cross multiply
    728,095.82x = 1,091,285.92 × 328,268.48
  4. Step 4: Simplify right side
    728,095.82x = 358,234,765,157.71
  5. Step 5: Solve for x
    x = 358,234,765,157.71/728,095.82
  6. Step 6: Final answer
    x = 492,015.97

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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.