Home / 1,087,637.70-1,630,808.55-667,215.30

Finding the Fourth Proportional to 1,087,637.70, 1,630,808.55 and 667,215.30

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Solution

The fourth proportional to 1,087,637.70, 1,630,808.55 and 667,215.30 is: 1,000,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,637.70 : 1,630,808.55 = 667,215.30 : x
  2. Step 2: Convert to fraction form
    1,087,637.70/1,630,808.55 = 667,215.30/x
  3. Step 3: Cross multiply
    1,087,637.70x = 1,630,808.55 × 667,215.30
  4. Step 4: Simplify right side
    1,087,637.70x = 1,088,100,415,930.82
  5. Step 5: Solve for x
    x = 1,088,100,415,930.82/1,087,637.70
  6. Step 6: Final answer
    x = 1,000,425.43

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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.