Home / 420,932.94-580,887.98-239,644.86

Finding the Fourth Proportional to 420,932.94, 580,887.98 and 239,644.86

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Solution

The fourth proportional to 420,932.94, 580,887.98 and 239,644.86 is: 330,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,932.94 : 580,887.98 = 239,644.86 : x
  2. Step 2: Convert to fraction form
    420,932.94/580,887.98 = 239,644.86/x
  3. Step 3: Cross multiply
    420,932.94x = 580,887.98 × 239,644.86
  4. Step 4: Simplify right side
    420,932.94x = 139,206,821,740.14
  5. Step 5: Solve for x
    x = 139,206,821,740.14/420,932.94
  6. Step 6: Final answer
    x = 330,710.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.