Home / 389,627.92-583,971.60-189,648.64

Finding the Fourth Proportional to 389,627.92, 583,971.60 and 189,648.64

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Solution

The fourth proportional to 389,627.92, 583,971.60 and 189,648.64 is: 284,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,627.92 : 583,971.60 = 189,648.64 : x
  2. Step 2: Convert to fraction form
    389,627.92/583,971.60 = 189,648.64/x
  3. Step 3: Cross multiply
    389,627.92x = 583,971.60 × 189,648.64
  4. Step 4: Simplify right side
    389,627.92x = 110,749,419,738.62
  5. Step 5: Solve for x
    x = 110,749,419,738.62/389,627.92
  6. Step 6: Final answer
    x = 284,244.05

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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.