Home / 1,087,625.70-1,630,790.55-667,203.30

Finding the Fourth Proportional to 1,087,625.70, 1,630,790.55 and 667,203.30

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Solution

The fourth proportional to 1,087,625.70, 1,630,790.55 and 667,203.30 is: 1,000,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,625.70 : 1,630,790.55 = 667,203.30 : x
  2. Step 2: Convert to fraction form
    1,087,625.70/1,630,790.55 = 667,203.30/x
  3. Step 3: Cross multiply
    1,087,625.70x = 1,630,790.55 × 667,203.30
  4. Step 4: Simplify right side
    1,087,625.70x = 1,088,068,836,568.82
  5. Step 5: Solve for x
    x = 1,088,068,836,568.82/1,087,625.70
  6. Step 6: Final answer
    x = 1,000,407.43

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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.