Home / 465,938.91-642,841.11-379,749.78

Finding the Fourth Proportional to 465,938.91, 642,841.11 and 379,749.78

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Solution

The fourth proportional to 465,938.91, 642,841.11 and 379,749.78 is: 523,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,938.91 : 642,841.11 = 379,749.78 : x
  2. Step 2: Convert to fraction form
    465,938.91/642,841.11 = 379,749.78/x
  3. Step 3: Cross multiply
    465,938.91x = 642,841.11 × 379,749.78
  4. Step 4: Simplify right side
    465,938.91x = 244,118,770,097.46
  5. Step 5: Solve for x
    x = 244,118,770,097.46/465,938.91
  6. Step 6: Final answer
    x = 523,928.71

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1.5x scale

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.