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Finding the Fourth Proportional to 456.57, 679.86 and 444.96

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Solution

The fourth proportional to 456.57, 679.86 and 444.96 is: 662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.57 : 679.86 = 444.96 : x
  2. Step 2: Convert to fraction form
    456.57/679.86 = 444.96/x
  3. Step 3: Cross multiply
    456.57x = 679.86 × 444.96
  4. Step 4: Simplify right side
    456.57x = 302,510.51
  5. Step 5: Solve for x
    x = 302,510.51/456.57
  6. Step 6: Final answer
    x = 662.57

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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.