Home / 1,313,868.28-1,970,872.78-415,241.64

Finding the Fourth Proportional to 1,313,868.28, 1,970,872.78 and 415,241.64

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Solution

The fourth proportional to 1,313,868.28, 1,970,872.78 and 415,241.64 is: 622,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,868.28 : 1,970,872.78 = 415,241.64 : x
  2. Step 2: Convert to fraction form
    1,313,868.28/1,970,872.78 = 415,241.64/x
  3. Step 3: Cross multiply
    1,313,868.28x = 1,970,872.78 × 415,241.64
  4. Step 4: Simplify right side
    1,313,868.28x = 818,388,445,398.56
  5. Step 5: Solve for x
    x = 818,388,445,398.56/1,313,868.28
  6. Step 6: Final answer
    x = 622,884.70

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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.