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Finding the Fourth Proportional to 406,605.53, 561,118.92 and 225,320.48

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Solution

The fourth proportional to 406,605.53, 561,118.92 and 225,320.48 is: 310,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,605.53 : 561,118.92 = 225,320.48 : x
  2. Step 2: Convert to fraction form
    406,605.53/561,118.92 = 225,320.48/x
  3. Step 3: Cross multiply
    406,605.53x = 561,118.92 × 225,320.48
  4. Step 4: Simplify right side
    406,605.53x = 126,431,584,391.48
  5. Step 5: Solve for x
    x = 126,431,584,391.48/406,605.53
  6. Step 6: Final answer
    x = 310,944.08

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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.