Home / 457,241.20-685,861.80-207,923.20

Finding the Fourth Proportional to 457,241.20, 685,861.80 and 207,923.20

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Solution

The fourth proportional to 457,241.20, 685,861.80 and 207,923.20 is: 311,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,241.20 : 685,861.80 = 207,923.20 : x
  2. Step 2: Convert to fraction form
    457,241.20/685,861.80 = 207,923.20/x
  3. Step 3: Cross multiply
    457,241.20x = 685,861.80 × 207,923.20
  4. Step 4: Simplify right side
    457,241.20x = 142,606,580,213.76
  5. Step 5: Solve for x
    x = 142,606,580,213.76/457,241.20
  6. Step 6: Final answer
    x = 311,884.80

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Similar ratio
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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.