Home / 766,578.72-1,057,911.36-427,046.88

Finding the Fourth Proportional to 766,578.72, 1,057,911.36 and 427,046.88

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Solution

The fourth proportional to 766,578.72, 1,057,911.36 and 427,046.88 is: 589,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,578.72 : 1,057,911.36 = 427,046.88 : x
  2. Step 2: Convert to fraction form
    766,578.72/1,057,911.36 = 427,046.88/x
  3. Step 3: Cross multiply
    766,578.72x = 1,057,911.36 × 427,046.88
  4. Step 4: Simplify right side
    766,578.72x = 451,777,745,604.56
  5. Step 5: Solve for x
    x = 451,777,745,604.56/766,578.72
  6. Step 6: Final answer
    x = 589,342.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.