Home / 765,052.12-1,055,757.22-420,867.94

Finding the Fourth Proportional to 765,052.12, 1,055,757.22 and 420,867.94

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Solution

The fourth proportional to 765,052.12, 1,055,757.22 and 420,867.94 is: 580,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,052.12 : 1,055,757.22 = 420,867.94 : x
  2. Step 2: Convert to fraction form
    765,052.12/1,055,757.22 = 420,867.94/x
  3. Step 3: Cross multiply
    765,052.12x = 1,055,757.22 × 420,867.94
  4. Step 4: Simplify right side
    765,052.12x = 444,334,366,321.53
  5. Step 5: Solve for x
    x = 444,334,366,321.53/765,052.12
  6. Step 6: Final answer
    x = 580,789.67

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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.