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Finding the Fourth Proportional to 610,255.68, 842,202.75 and 338,408.85

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Solution

The fourth proportional to 610,255.68, 842,202.75 and 338,408.85 is: 467,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,255.68 : 842,202.75 = 338,408.85 : x
  2. Step 2: Convert to fraction form
    610,255.68/842,202.75 = 338,408.85/x
  3. Step 3: Cross multiply
    610,255.68x = 842,202.75 × 338,408.85
  4. Step 4: Simplify right side
    610,255.68x = 285,008,862,402.29
  5. Step 5: Solve for x
    x = 285,008,862,402.29/610,255.68
  6. Step 6: Final answer
    x = 467,031.89

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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.