Home / 406,760.15-561,270.06-225,472.03

Finding the Fourth Proportional to 406,760.15, 561,270.06 and 225,472.03

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Solution

The fourth proportional to 406,760.15, 561,270.06 and 225,472.03 is: 311,118.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,760.15 : 561,270.06 = 225,472.03 : x
  2. Step 2: Convert to fraction form
    406,760.15/561,270.06 = 225,472.03/x
  3. Step 3: Cross multiply
    406,760.15x = 561,270.06 × 225,472.03
  4. Step 4: Simplify right side
    406,760.15x = 126,550,698,403.25
  5. Step 5: Solve for x
    x = 126,550,698,403.25/406,760.15
  6. Step 6: Final answer
    x = 311,118.72

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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.