Home / 406,949.09-561,592.89-225,650.42

Finding the Fourth Proportional to 406,949.09, 561,592.89 and 225,650.42

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Solution

The fourth proportional to 406,949.09, 561,592.89 and 225,650.42 is: 311,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,949.09 : 561,592.89 = 225,650.42 : x
  2. Step 2: Convert to fraction form
    406,949.09/561,592.89 = 225,650.42/x
  3. Step 3: Cross multiply
    406,949.09x = 561,592.89 × 225,650.42
  4. Step 4: Simplify right side
    406,949.09x = 126,723,671,497.51
  5. Step 5: Solve for x
    x = 126,723,671,497.51/406,949.09
  6. Step 6: Final answer
    x = 311,399.32

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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.