Home / 1,072,987.20-1,609,480.80-408,052.80

Finding the Fourth Proportional to 1,072,987.20, 1,609,480.80 and 408,052.80

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Solution

The fourth proportional to 1,072,987.20, 1,609,480.80 and 408,052.80 is: 612,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,987.20 : 1,609,480.80 = 408,052.80 : x
  2. Step 2: Convert to fraction form
    1,072,987.20/1,609,480.80 = 408,052.80/x
  3. Step 3: Cross multiply
    1,072,987.20x = 1,609,480.80 × 408,052.80
  4. Step 4: Simplify right side
    1,072,987.20x = 656,753,146,986.24
  5. Step 5: Solve for x
    x = 656,753,146,986.24/1,072,987.20
  6. Step 6: Final answer
    x = 612,079.20

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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.