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Finding the Fourth Proportional to 451,002.60, 622,242 and 259,989.48

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Solution

The fourth proportional to 451,002.60, 622,242 and 259,989.48 is: 358,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,002.60 : 622,242 = 259,989.48 : x
  2. Step 2: Convert to fraction form
    451,002.60/622,242 = 259,989.48/x
  3. Step 3: Cross multiply
    451,002.60x = 622,242 × 259,989.48
  4. Step 4: Simplify right side
    451,002.60x = 161,776,374,014.16
  5. Step 5: Solve for x
    x = 161,776,374,014.16/451,002.60
  6. Step 6: Final answer
    x = 358,703.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.