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Finding the Fourth Proportional to 386,061.60, 577,863.60 and 275,469.60

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Solution

The fourth proportional to 386,061.60, 577,863.60 and 275,469.60 is: 412,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,061.60 : 577,863.60 = 275,469.60 : x
  2. Step 2: Convert to fraction form
    386,061.60/577,863.60 = 275,469.60/x
  3. Step 3: Cross multiply
    386,061.60x = 577,863.60 × 275,469.60
  4. Step 4: Simplify right side
    386,061.60x = 159,183,854,746.56
  5. Step 5: Solve for x
    x = 159,183,854,746.56/386,061.60
  6. Step 6: Final answer
    x = 412,327.60

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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.