Home / 1,140,738.82-1,711,103.58-287,812.48

Finding the Fourth Proportional to 1,140,738.82, 1,711,103.58 and 287,812.48

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Solution

The fourth proportional to 1,140,738.82, 1,711,103.58 and 287,812.48 is: 431,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,738.82 : 1,711,103.58 = 287,812.48 : x
  2. Step 2: Convert to fraction form
    1,140,738.82/1,711,103.58 = 287,812.48/x
  3. Step 3: Cross multiply
    1,140,738.82x = 1,711,103.58 × 287,812.48
  4. Step 4: Simplify right side
    1,140,738.82x = 492,476,964,896.68
  5. Step 5: Solve for x
    x = 492,476,964,896.68/1,140,738.82
  6. Step 6: Final answer
    x = 431,717.55

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Double scale
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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.