Home / 452,002.20-678,003.30-115,042.20

Finding the Fourth Proportional to 452,002.20, 678,003.30 and 115,042.20

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Solution

The fourth proportional to 452,002.20, 678,003.30 and 115,042.20 is: 172,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,002.20 : 678,003.30 = 115,042.20 : x
  2. Step 2: Convert to fraction form
    452,002.20/678,003.30 = 115,042.20/x
  3. Step 3: Cross multiply
    452,002.20x = 678,003.30 × 115,042.20
  4. Step 4: Simplify right side
    452,002.20x = 77,998,991,239.26
  5. Step 5: Solve for x
    x = 77,998,991,239.26/452,002.20
  6. Step 6: Final answer
    x = 172,563.30

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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.