Home / 420,558.08-580,370.64-269,655.04

Finding the Fourth Proportional to 420,558.08, 580,370.64 and 269,655.04

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Solution

The fourth proportional to 420,558.08, 580,370.64 and 269,655.04 is: 372,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,558.08 : 580,370.64 = 269,655.04 : x
  2. Step 2: Convert to fraction form
    420,558.08/580,370.64 = 269,655.04/x
  3. Step 3: Cross multiply
    420,558.08x = 580,370.64 × 269,655.04
  4. Step 4: Simplify right side
    420,558.08x = 156,499,868,144.03
  5. Step 5: Solve for x
    x = 156,499,868,144.03/420,558.08
  6. Step 6: Final answer
    x = 372,124.27

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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.