Home / 420,644.32-580,490.48-269,741.92

Finding the Fourth Proportional to 420,644.32, 580,490.48 and 269,741.92

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Solution

The fourth proportional to 420,644.32, 580,490.48 and 269,741.92 is: 372,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,644.32 : 580,490.48 = 269,741.92 : x
  2. Step 2: Convert to fraction form
    420,644.32/580,490.48 = 269,741.92/x
  3. Step 3: Cross multiply
    420,644.32x = 580,490.48 × 269,741.92
  4. Step 4: Simplify right side
    420,644.32x = 156,582,616,616.92
  5. Step 5: Solve for x
    x = 156,582,616,616.92/420,644.32
  6. Step 6: Final answer
    x = 372,244.70

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1.5x scale

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.