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Finding the Fourth Proportional to 609,138.34, 840,600.90 and 337,200.58

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Solution

The fourth proportional to 609,138.34, 840,600.90 and 337,200.58 is: 465,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,138.34 : 840,600.90 = 337,200.58 : x
  2. Step 2: Convert to fraction form
    609,138.34/840,600.90 = 337,200.58/x
  3. Step 3: Cross multiply
    609,138.34x = 840,600.90 × 337,200.58
  4. Step 4: Simplify right side
    609,138.34x = 283,451,111,028.52
  5. Step 5: Solve for x
    x = 283,451,111,028.52/609,138.34
  6. Step 6: Final answer
    x = 465,331.26

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1.5x scale

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.