Home / 406,827.31-561,434.95-225,556.09

Finding the Fourth Proportional to 406,827.31, 561,434.95 and 225,556.09

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Solution

The fourth proportional to 406,827.31, 561,434.95 and 225,556.09 is: 311,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,827.31 : 561,434.95 = 225,556.09 : x
  2. Step 2: Convert to fraction form
    406,827.31/561,434.95 = 225,556.09/x
  3. Step 3: Cross multiply
    406,827.31x = 561,434.95 × 225,556.09
  4. Step 4: Simplify right side
    406,827.31x = 126,635,072,879.02
  5. Step 5: Solve for x
    x = 126,635,072,879.02/406,827.31
  6. Step 6: Final answer
    x = 311,274.76

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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.