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Finding the Fourth Proportional to 412.60, 623.73 and 412.60

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Solution

The fourth proportional to 412.60, 623.73 and 412.60 is: 623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.60 : 623.73 = 412.60 : x
  2. Step 2: Convert to fraction form
    412.60/623.73 = 412.60/x
  3. Step 3: Cross multiply
    412.60x = 623.73 × 412.60
  4. Step 4: Simplify right side
    412.60x = 257,351.00
  5. Step 5: Solve for x
    x = 257,351.00/412.60
  6. Step 6: Final answer
    x = 623.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.