Home / 809,052.92-1,213,226.40-429,882.20

Finding the Fourth Proportional to 809,052.92, 1,213,226.40 and 429,882.20

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Solution

The fourth proportional to 809,052.92, 1,213,226.40 and 429,882.20 is: 644,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,052.92 : 1,213,226.40 = 429,882.20 : x
  2. Step 2: Convert to fraction form
    809,052.92/1,213,226.40 = 429,882.20/x
  3. Step 3: Cross multiply
    809,052.92x = 1,213,226.40 × 429,882.20
  4. Step 4: Simplify right side
    809,052.92x = 521,544,433,930.08
  5. Step 5: Solve for x
    x = 521,544,433,930.08/809,052.92
  6. Step 6: Final answer
    x = 644,635.75

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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.