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Finding the Fourth Proportional to 609,138.57, 840,617.88 and 337,211

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Solution

The fourth proportional to 609,138.57, 840,617.88 and 337,211 is: 465,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,138.57 : 840,617.88 = 337,211 : x
  2. Step 2: Convert to fraction form
    609,138.57/840,617.88 = 337,211/x
  3. Step 3: Cross multiply
    609,138.57x = 840,617.88 × 337,211
  4. Step 4: Simplify right side
    609,138.57x = 283,465,594,246.63
  5. Step 5: Solve for x
    x = 283,465,594,246.63/609,138.57
  6. Step 6: Final answer
    x = 465,354.86

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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.