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Finding the Fourth Proportional to 504.23, 698.65 and 492.89

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Solution

The fourth proportional to 504.23, 698.65 and 492.89 is: 682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.23 : 698.65 = 492.89 : x
  2. Step 2: Convert to fraction form
    504.23/698.65 = 492.89/x
  3. Step 3: Cross multiply
    504.23x = 698.65 × 492.89
  4. Step 4: Simplify right side
    504.23x = 344,352.87
  5. Step 5: Solve for x
    x = 344,352.87/504.23
  6. Step 6: Final answer
    x = 682.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.