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Finding the Fourth Proportional to 720,750.45, 1,081,051.87 and 188,202.29

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Solution

The fourth proportional to 720,750.45, 1,081,051.87 and 188,202.29 is: 282,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,750.45 : 1,081,051.87 = 188,202.29 : x
  2. Step 2: Convert to fraction form
    720,750.45/1,081,051.87 = 188,202.29/x
  3. Step 3: Cross multiply
    720,750.45x = 1,081,051.87 × 188,202.29
  4. Step 4: Simplify right side
    720,750.45x = 203,456,432,019.90
  5. Step 5: Solve for x
    x = 203,456,432,019.90/720,750.45
  6. Step 6: Final answer
    x = 282,284.15

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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.