Home / 420,932.64-580,782.96-270,233.76

Finding the Fourth Proportional to 420,932.64, 580,782.96 and 270,233.76

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Solution

The fourth proportional to 420,932.64, 580,782.96 and 270,233.76 is: 372,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,932.64 : 580,782.96 = 270,233.76 : x
  2. Step 2: Convert to fraction form
    420,932.64/580,782.96 = 270,233.76/x
  3. Step 3: Cross multiply
    420,932.64x = 580,782.96 × 270,233.76
  4. Step 4: Simplify right side
    420,932.64x = 156,947,163,024.73
  5. Step 5: Solve for x
    x = 156,947,163,024.73/420,932.64
  6. Step 6: Final answer
    x = 372,855.77

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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.