Home / 925,722.15-1,388,083.86-420,007.26

Finding the Fourth Proportional to 925,722.15, 1,388,083.86 and 420,007.26

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Solution

The fourth proportional to 925,722.15, 1,388,083.86 and 420,007.26 is: 629,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,722.15 : 1,388,083.86 = 420,007.26 : x
  2. Step 2: Convert to fraction form
    925,722.15/1,388,083.86 = 420,007.26/x
  3. Step 3: Cross multiply
    925,722.15x = 1,388,083.86 × 420,007.26
  4. Step 4: Simplify right side
    925,722.15x = 583,005,298,688.82
  5. Step 5: Solve for x
    x = 583,005,298,688.82/925,722.15
  6. Step 6: Final answer
    x = 629,784.32

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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.