Home / 1,086,856.12-1,630,359.06-455,133.88

Finding the Fourth Proportional to 1,086,856.12, 1,630,359.06 and 455,133.88

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Solution

The fourth proportional to 1,086,856.12, 1,630,359.06 and 455,133.88 is: 682,732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,856.12 : 1,630,359.06 = 455,133.88 : x
  2. Step 2: Convert to fraction form
    1,086,856.12/1,630,359.06 = 455,133.88/x
  3. Step 3: Cross multiply
    1,086,856.12x = 1,630,359.06 × 455,133.88
  4. Step 4: Simplify right side
    1,086,856.12x = 742,031,644,770.95
  5. Step 5: Solve for x
    x = 742,031,644,770.95/1,086,856.12
  6. Step 6: Final answer
    x = 682,732.18

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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.