Home / 765,052.62-1,055,757.91-420,868.44

Finding the Fourth Proportional to 765,052.62, 1,055,757.91 and 420,868.44

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Solution

The fourth proportional to 765,052.62, 1,055,757.91 and 420,868.44 is: 580,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,052.62 : 1,055,757.91 = 420,868.44 : x
  2. Step 2: Convert to fraction form
    765,052.62/1,055,757.91 = 420,868.44/x
  3. Step 3: Cross multiply
    765,052.62x = 1,055,757.91 × 420,868.44
  4. Step 4: Simplify right side
    765,052.62x = 444,335,184,599.36
  5. Step 5: Solve for x
    x = 444,335,184,599.36/765,052.62
  6. Step 6: Final answer
    x = 580,790.36

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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.