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Finding the Fourth Proportional to 486,194.72, 670,920.48 and 271,317.92

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Solution

The fourth proportional to 486,194.72, 670,920.48 and 271,317.92 is: 374,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,194.72 : 670,920.48 = 271,317.92 : x
  2. Step 2: Convert to fraction form
    486,194.72/670,920.48 = 271,317.92/x
  3. Step 3: Cross multiply
    486,194.72x = 670,920.48 × 271,317.92
  4. Step 4: Simplify right side
    486,194.72x = 182,032,749,119.00
  5. Step 5: Solve for x
    x = 182,032,749,119.00/486,194.72
  6. Step 6: Final answer
    x = 374,402.97

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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.