Home / 1,087,623.70-1,630,787.55-667,201.30

Finding the Fourth Proportional to 1,087,623.70, 1,630,787.55 and 667,201.30

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Solution

The fourth proportional to 1,087,623.70, 1,630,787.55 and 667,201.30 is: 1,000,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,623.70 : 1,630,787.55 = 667,201.30 : x
  2. Step 2: Convert to fraction form
    1,087,623.70/1,630,787.55 = 667,201.30/x
  3. Step 3: Cross multiply
    1,087,623.70x = 1,630,787.55 × 667,201.30
  4. Step 4: Simplify right side
    1,087,623.70x = 1,088,063,573,383.82
  5. Step 5: Solve for x
    x = 1,088,063,573,383.82/1,087,623.70
  6. Step 6: Final answer
    x = 1,000,404.44

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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.