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Finding the Fourth Proportional to 406,675.82, 561,216.78 and 225,391.74

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Solution

The fourth proportional to 406,675.82, 561,216.78 and 225,391.74 is: 311,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,675.82 : 561,216.78 = 225,391.74 : x
  2. Step 2: Convert to fraction form
    406,675.82/561,216.78 = 225,391.74/x
  3. Step 3: Cross multiply
    406,675.82x = 561,216.78 × 225,391.74
  4. Step 4: Simplify right side
    406,675.82x = 126,493,626,561.40
  5. Step 5: Solve for x
    x = 126,493,626,561.40/406,675.82
  6. Step 6: Final answer
    x = 311,042.90

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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.