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Finding the Fourth Proportional to 406,899.28, 561,498.56 and 225,600.64

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Solution

The fourth proportional to 406,899.28, 561,498.56 and 225,600.64 is: 311,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,899.28 : 561,498.56 = 225,600.64 : x
  2. Step 2: Convert to fraction form
    406,899.28/561,498.56 = 225,600.64/x
  3. Step 3: Cross multiply
    406,899.28x = 561,498.56 × 225,600.64
  4. Step 4: Simplify right side
    406,899.28x = 126,674,434,495.08
  5. Step 5: Solve for x
    x = 126,674,434,495.08/406,899.28
  6. Step 6: Final answer
    x = 311,316.44

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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.