Home / 1,087,630.20-1,630,797.30-667,207.80

Finding the Fourth Proportional to 1,087,630.20, 1,630,797.30 and 667,207.80

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Solution

The fourth proportional to 1,087,630.20, 1,630,797.30 and 667,207.80 is: 1,000,414.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,630.20 : 1,630,797.30 = 667,207.80 : x
  2. Step 2: Convert to fraction form
    1,087,630.20/1,630,797.30 = 667,207.80/x
  3. Step 3: Cross multiply
    1,087,630.20x = 1,630,797.30 × 667,207.80
  4. Step 4: Simplify right side
    1,087,630.20x = 1,088,080,678,778.94
  5. Step 5: Solve for x
    x = 1,088,080,678,778.94/1,087,630.20
  6. Step 6: Final answer
    x = 1,000,414.18

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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.