Home / 406,596.18-561,086.61-225,315.78

Finding the Fourth Proportional to 406,596.18, 561,086.61 and 225,315.78

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Solution

The fourth proportional to 406,596.18, 561,086.61 and 225,315.78 is: 310,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,596.18 : 561,086.61 = 225,315.78 : x
  2. Step 2: Convert to fraction form
    406,596.18/561,086.61 = 225,315.78/x
  3. Step 3: Cross multiply
    406,596.18x = 561,086.61 × 225,315.78
  4. Step 4: Simplify right side
    406,596.18x = 126,421,667,179.71
  5. Step 5: Solve for x
    x = 126,421,667,179.71/406,596.18
  6. Step 6: Final answer
    x = 310,926.84

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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.