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Finding the Fourth Proportional to 610,255.43, 842,202.40 and 338,408.60

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Solution

The fourth proportional to 610,255.43, 842,202.40 and 338,408.60 is: 467,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,255.43 : 842,202.40 = 338,408.60 : x
  2. Step 2: Convert to fraction form
    610,255.43/842,202.40 = 338,408.60/x
  3. Step 3: Cross multiply
    610,255.43x = 842,202.40 × 338,408.60
  4. Step 4: Simplify right side
    610,255.43x = 285,008,533,418.15
  5. Step 5: Solve for x
    x = 285,008,533,418.15/610,255.43
  6. Step 6: Final answer
    x = 467,031.54

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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.