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Finding the Fourth Proportional to 457,148.10, 685,722.15 and 297,715.80

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Solution

The fourth proportional to 457,148.10, 685,722.15 and 297,715.80 is: 446,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,148.10 : 685,722.15 = 297,715.80 : x
  2. Step 2: Convert to fraction form
    457,148.10/685,722.15 = 297,715.80/x
  3. Step 3: Cross multiply
    457,148.10x = 685,722.15 × 297,715.80
  4. Step 4: Simplify right side
    457,148.10x = 204,150,318,464.97
  5. Step 5: Solve for x
    x = 204,150,318,464.97/457,148.10
  6. Step 6: Final answer
    x = 446,573.70

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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.