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Finding the Fourth Proportional to 720,997.92, 1,081,403.01 and 188,560.01

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Solution

The fourth proportional to 720,997.92, 1,081,403.01 and 188,560.01 is: 282,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,997.92 : 1,081,403.01 = 188,560.01 : x
  2. Step 2: Convert to fraction form
    720,997.92/1,081,403.01 = 188,560.01/x
  3. Step 3: Cross multiply
    720,997.92x = 1,081,403.01 × 188,560.01
  4. Step 4: Simplify right side
    720,997.92x = 203,909,356,972.62
  5. Step 5: Solve for x
    x = 203,909,356,972.62/720,997.92
  6. Step 6: Final answer
    x = 282,815.46

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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.