Home / 769,433.72-1,154,042.67-263,986.40

Finding the Fourth Proportional to 769,433.72, 1,154,042.67 and 263,986.40

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Solution

The fourth proportional to 769,433.72, 1,154,042.67 and 263,986.40 is: 395,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,433.72 : 1,154,042.67 = 263,986.40 : x
  2. Step 2: Convert to fraction form
    769,433.72/1,154,042.67 = 263,986.40/x
  3. Step 3: Cross multiply
    769,433.72x = 1,154,042.67 × 263,986.40
  4. Step 4: Simplify right side
    769,433.72x = 304,651,569,899.69
  5. Step 5: Solve for x
    x = 304,651,569,899.69/769,433.72
  6. Step 6: Final answer
    x = 395,942.58

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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.