Home / 406,723.28-561,311.76-225,492.08

Finding the Fourth Proportional to 406,723.28, 561,311.76 and 225,492.08

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Solution

The fourth proportional to 406,723.28, 561,311.76 and 225,492.08 is: 311,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,723.28 : 561,311.76 = 225,492.08 : x
  2. Step 2: Convert to fraction form
    406,723.28/561,311.76 = 225,492.08/x
  3. Step 3: Cross multiply
    406,723.28x = 561,311.76 × 225,492.08
  4. Step 4: Simplify right side
    406,723.28x = 126,571,356,290.86
  5. Step 5: Solve for x
    x = 126,571,356,290.86/406,723.28
  6. Step 6: Final answer
    x = 311,197.72

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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.