Home / 811,524.96-1,217,049.50-305,721

Finding the Fourth Proportional to 811,524.96, 1,217,049.50 and 305,721

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Solution

The fourth proportional to 811,524.96, 1,217,049.50 and 305,721 is: 458,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,524.96 : 1,217,049.50 = 305,721 : x
  2. Step 2: Convert to fraction form
    811,524.96/1,217,049.50 = 305,721/x
  3. Step 3: Cross multiply
    811,524.96x = 1,217,049.50 × 305,721
  4. Step 4: Simplify right side
    811,524.96x = 372,077,590,189.50
  5. Step 5: Solve for x
    x = 372,077,590,189.50/811,524.96
  6. Step 6: Final answer
    x = 458,491.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.