Home / 925,564.82-1,388,520.99-420,161.27

Finding the Fourth Proportional to 925,564.82, 1,388,520.99 and 420,161.27

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Solution

The fourth proportional to 925,564.82, 1,388,520.99 and 420,161.27 is: 630,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,564.82 : 1,388,520.99 = 420,161.27 : x
  2. Step 2: Convert to fraction form
    925,564.82/1,388,520.99 = 420,161.27/x
  3. Step 3: Cross multiply
    925,564.82x = 1,388,520.99 × 420,161.27
  4. Step 4: Simplify right side
    925,564.82x = 583,402,735,637.45
  5. Step 5: Solve for x
    x = 583,402,735,637.45/925,564.82
  6. Step 6: Final answer
    x = 630,320.78

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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.