Home / 420,933.64-580,784.34-270,234.76

Finding the Fourth Proportional to 420,933.64, 580,784.34 and 270,234.76

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Solution

The fourth proportional to 420,933.64, 580,784.34 and 270,234.76 is: 372,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,933.64 : 580,784.34 = 270,234.76 : x
  2. Step 2: Convert to fraction form
    420,933.64/580,784.34 = 270,234.76/x
  3. Step 3: Cross multiply
    420,933.64x = 580,784.34 × 270,234.76
  4. Step 4: Simplify right side
    420,933.64x = 156,948,116,731.66
  5. Step 5: Solve for x
    x = 156,948,116,731.66/420,933.64
  6. Step 6: Final answer
    x = 372,857.15

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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.