Home / 406,845.42-561,479.94-225,614.20

Finding the Fourth Proportional to 406,845.42, 561,479.94 and 225,614.20

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Solution

The fourth proportional to 406,845.42, 561,479.94 and 225,614.20 is: 311,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,845.42 : 561,479.94 = 225,614.20 : x
  2. Step 2: Convert to fraction form
    406,845.42/561,479.94 = 225,614.20/x
  3. Step 3: Cross multiply
    406,845.42x = 561,479.94 × 225,614.20
  4. Step 4: Simplify right side
    406,845.42x = 126,677,847,479.15
  5. Step 5: Solve for x
    x = 126,677,847,479.15/406,845.42
  6. Step 6: Final answer
    x = 311,366.04

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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.