Home / 861,849.18-1,293,364.26-300,883.68

Finding the Fourth Proportional to 861,849.18, 1,293,364.26 and 300,883.68

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Solution

The fourth proportional to 861,849.18, 1,293,364.26 and 300,883.68 is: 451,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,849.18 : 1,293,364.26 = 300,883.68 : x
  2. Step 2: Convert to fraction form
    861,849.18/1,293,364.26 = 300,883.68/x
  3. Step 3: Cross multiply
    861,849.18x = 1,293,364.26 × 300,883.68
  4. Step 4: Simplify right side
    861,849.18x = 389,152,198,129.28
  5. Step 5: Solve for x
    x = 389,152,198,129.28/861,849.18
  6. Step 6: Final answer
    x = 451,531.67

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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.