Home / 851,559.28-1,275,892.94-513,890.38

Finding the Fourth Proportional to 851,559.28, 1,275,892.94 and 513,890.38

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Solution

The fourth proportional to 851,559.28, 1,275,892.94 and 513,890.38 is: 769,962.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,559.28 : 1,275,892.94 = 513,890.38 : x
  2. Step 2: Convert to fraction form
    851,559.28/1,275,892.94 = 513,890.38/x
  3. Step 3: Cross multiply
    851,559.28x = 1,275,892.94 × 513,890.38
  4. Step 4: Simplify right side
    851,559.28x = 655,669,107,775.92
  5. Step 5: Solve for x
    x = 655,669,107,775.92/851,559.28
  6. Step 6: Final answer
    x = 769,962.96

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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.