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Finding the Fourth Proportional to 406,606.89, 561,122.69 and 225,322.37

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Solution

The fourth proportional to 406,606.89, 561,122.69 and 225,322.37 is: 310,947.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,606.89 : 561,122.69 = 225,322.37 : x
  2. Step 2: Convert to fraction form
    406,606.89/561,122.69 = 225,322.37/x
  3. Step 3: Cross multiply
    406,606.89x = 561,122.69 × 225,322.37
  4. Step 4: Simplify right side
    406,606.89x = 126,433,490,439.35
  5. Step 5: Solve for x
    x = 126,433,490,439.35/406,606.89
  6. Step 6: Final answer
    x = 310,947.73

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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.