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Finding the Fourth Proportional to 579.55, 867.47 and 492.07

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Solution

The fourth proportional to 579.55, 867.47 and 492.07 is: 736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.55 : 867.47 = 492.07 : x
  2. Step 2: Convert to fraction form
    579.55/867.47 = 492.07/x
  3. Step 3: Cross multiply
    579.55x = 867.47 × 492.07
  4. Step 4: Simplify right side
    579.55x = 426,851.33
  5. Step 5: Solve for x
    x = 426,851.33/579.55
  6. Step 6: Final answer
    x = 736.53

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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.