Home / 809,795.69-1,215,429.68-431,033.27

Finding the Fourth Proportional to 809,795.69, 1,215,429.68 and 431,033.27

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Solution

The fourth proportional to 809,795.69, 1,215,429.68 and 431,033.27 is: 646,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,795.69 : 1,215,429.68 = 431,033.27 : x
  2. Step 2: Convert to fraction form
    809,795.69/1,215,429.68 = 431,033.27/x
  3. Step 3: Cross multiply
    809,795.69x = 1,215,429.68 × 431,033.27
  4. Step 4: Simplify right side
    809,795.69x = 523,890,623,213.61
  5. Step 5: Solve for x
    x = 523,890,623,213.61/809,795.69
  6. Step 6: Final answer
    x = 646,941.72

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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.