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Finding the Fourth Proportional to 492,430.22, 680,113.91 and 331,004.92

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Solution

The fourth proportional to 492,430.22, 680,113.91 and 331,004.92 is: 457,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,430.22 : 680,113.91 = 331,004.92 : x
  2. Step 2: Convert to fraction form
    492,430.22/680,113.91 = 331,004.92/x
  3. Step 3: Cross multiply
    492,430.22x = 680,113.91 × 331,004.92
  4. Step 4: Simplify right side
    492,430.22x = 225,121,050,370.44
  5. Step 5: Solve for x
    x = 225,121,050,370.44/492,430.22
  6. Step 6: Final answer
    x = 457,163.35

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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.