Home / 2,987,999.60-4,481,416.20-993,455.60

Finding the Fourth Proportional to 2,987,999.60, 4,481,416.20 and 993,455.60

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Solution

The fourth proportional to 2,987,999.60, 4,481,416.20 and 993,455.60 is: 1,489,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,999.60 : 4,481,416.20 = 993,455.60 : x
  2. Step 2: Convert to fraction form
    2,987,999.60/4,481,416.20 = 993,455.60/x
  3. Step 3: Cross multiply
    2,987,999.60x = 4,481,416.20 × 993,455.60
  4. Step 4: Simplify right side
    2,987,999.60x = 4,452,088,019,820.72
  5. Step 5: Solve for x
    x = 4,452,088,019,820.72/2,987,999.60
  6. Step 6: Final answer
    x = 1,489,989.50

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Double scale
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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.