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Finding the Fourth Proportional to 583.47, 873.59 and 492.21

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Solution

The fourth proportional to 583.47, 873.59 and 492.21 is: 736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.47 : 873.59 = 492.21 : x
  2. Step 2: Convert to fraction form
    583.47/873.59 = 492.21/x
  3. Step 3: Cross multiply
    583.47x = 873.59 × 492.21
  4. Step 4: Simplify right side
    583.47x = 429,987.27
  5. Step 5: Solve for x
    x = 429,987.27/583.47
  6. Step 6: Final answer
    x = 736.95

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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.