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Finding the Fourth Proportional to 509.41, 763.03 and 472.69

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Solution

The fourth proportional to 509.41, 763.03 and 472.69 is: 708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.41 : 763.03 = 472.69 : x
  2. Step 2: Convert to fraction form
    509.41/763.03 = 472.69/x
  3. Step 3: Cross multiply
    509.41x = 763.03 × 472.69
  4. Step 4: Simplify right side
    509.41x = 360,676.65
  5. Step 5: Solve for x
    x = 360,676.65/509.41
  6. Step 6: Final answer
    x = 708.03

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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.