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Finding the Fourth Proportional to 427,592.92, 641,610.60 and 310,232.92

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Solution

The fourth proportional to 427,592.92, 641,610.60 and 310,232.92 is: 465,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,592.92 : 641,610.60 = 310,232.92 : x
  2. Step 2: Convert to fraction form
    427,592.92/641,610.60 = 310,232.92/x
  3. Step 3: Cross multiply
    427,592.92x = 641,610.60 × 310,232.92
  4. Step 4: Simplify right side
    427,592.92x = 199,048,729,940.95
  5. Step 5: Solve for x
    x = 199,048,729,940.95/427,592.92
  6. Step 6: Final answer
    x = 465,509.88

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1.5x scale

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.