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Finding the Fourth Proportional to 495.02, 741.54 and 392.48

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Solution

The fourth proportional to 495.02, 741.54 and 392.48 is: 587.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.02 : 741.54 = 392.48 : x
  2. Step 2: Convert to fraction form
    495.02/741.54 = 392.48/x
  3. Step 3: Cross multiply
    495.02x = 741.54 × 392.48
  4. Step 4: Simplify right side
    495.02x = 291,039.62
  5. Step 5: Solve for x
    x = 291,039.62/495.02
  6. Step 6: Final answer
    x = 587.94

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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.