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Finding the Fourth Proportional to 478,598.20, 660,469.97 and 263,745.97

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Solution

The fourth proportional to 478,598.20, 660,469.97 and 263,745.97 is: 363,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,598.20 : 660,469.97 = 263,745.97 : x
  2. Step 2: Convert to fraction form
    478,598.20/660,469.97 = 263,745.97/x
  3. Step 3: Cross multiply
    478,598.20x = 660,469.97 × 263,745.97
  4. Step 4: Simplify right side
    478,598.20x = 174,196,292,893.52
  5. Step 5: Solve for x
    x = 174,196,292,893.52/478,598.20
  6. Step 6: Final answer
    x = 363,971.89

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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.