Home / 642,636.28-963,732.03-263,449.36

Finding the Fourth Proportional to 642,636.28, 963,732.03 and 263,449.36

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Solution

The fourth proportional to 642,636.28, 963,732.03 and 263,449.36 is: 395,082.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,636.28 : 963,732.03 = 263,449.36 : x
  2. Step 2: Convert to fraction form
    642,636.28/963,732.03 = 263,449.36/x
  3. Step 3: Cross multiply
    642,636.28x = 963,732.03 × 263,449.36
  4. Step 4: Simplify right side
    642,636.28x = 253,894,586,515.00
  5. Step 5: Solve for x
    x = 253,894,586,515.00/642,636.28
  6. Step 6: Final answer
    x = 395,082.87

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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.