Home / 1,107,819.81-1,662,009.66-309,100.88

Finding the Fourth Proportional to 1,107,819.81, 1,662,009.66 and 309,100.88

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Solution

The fourth proportional to 1,107,819.81, 1,662,009.66 and 309,100.88 is: 463,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,819.81 : 1,662,009.66 = 309,100.88 : x
  2. Step 2: Convert to fraction form
    1,107,819.81/1,662,009.66 = 309,100.88/x
  3. Step 3: Cross multiply
    1,107,819.81x = 1,662,009.66 × 309,100.88
  4. Step 4: Simplify right side
    1,107,819.81x = 513,728,640,164.45
  5. Step 5: Solve for x
    x = 513,728,640,164.45/1,107,819.81
  6. Step 6: Final answer
    x = 463,729.42

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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.