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Finding the Fourth Proportional to 507.98, 756.72 and 492.68

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Solution

The fourth proportional to 507.98, 756.72 and 492.68 is: 733.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.98 : 756.72 = 492.68 : x
  2. Step 2: Convert to fraction form
    507.98/756.72 = 492.68/x
  3. Step 3: Cross multiply
    507.98x = 756.72 × 492.68
  4. Step 4: Simplify right side
    507.98x = 372,820.81
  5. Step 5: Solve for x
    x = 372,820.81/507.98
  6. Step 6: Final answer
    x = 733.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.