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Finding the Fourth Proportional to 457,193.60, 685,790.40 and 298,563.20

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Solution

The fourth proportional to 457,193.60, 685,790.40 and 298,563.20 is: 447,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,193.60 : 685,790.40 = 298,563.20 : x
  2. Step 2: Convert to fraction form
    457,193.60/685,790.40 = 298,563.20/x
  3. Step 3: Cross multiply
    457,193.60x = 685,790.40 × 298,563.20
  4. Step 4: Simplify right side
    457,193.60x = 204,751,776,353.28
  5. Step 5: Solve for x
    x = 204,751,776,353.28/457,193.60
  6. Step 6: Final answer
    x = 447,844.80

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Similar ratio
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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.