Home / 457,331.20-685,996.80-124,907.20

Finding the Fourth Proportional to 457,331.20, 685,996.80 and 124,907.20

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Solution

The fourth proportional to 457,331.20, 685,996.80 and 124,907.20 is: 187,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,331.20 : 685,996.80 = 124,907.20 : x
  2. Step 2: Convert to fraction form
    457,331.20/685,996.80 = 124,907.20/x
  3. Step 3: Cross multiply
    457,331.20x = 685,996.80 × 124,907.20
  4. Step 4: Simplify right side
    457,331.20x = 85,685,939,496.96
  5. Step 5: Solve for x
    x = 85,685,939,496.96/457,331.20
  6. Step 6: Final answer
    x = 187,360.80

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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.