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Finding the Fourth Proportional to 406,974.92, 561,556.92 and 271,211.54

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Solution

The fourth proportional to 406,974.92, 561,556.92 and 271,211.54 is: 374,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,974.92 : 561,556.92 = 271,211.54 : x
  2. Step 2: Convert to fraction form
    406,974.92/561,556.92 = 271,211.54/x
  3. Step 3: Cross multiply
    406,974.92x = 561,556.92 × 271,211.54
  4. Step 4: Simplify right side
    406,974.92x = 152,300,717,070.86
  5. Step 5: Solve for x
    x = 152,300,717,070.86/406,974.92
  6. Step 6: Final answer
    x = 374,226.30

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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.