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Finding the Fourth Proportional to 449,076.32, 619,510.48 and 303,932.96

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Solution

The fourth proportional to 449,076.32, 619,510.48 and 303,932.96 is: 419,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,076.32 : 619,510.48 = 303,932.96 : x
  2. Step 2: Convert to fraction form
    449,076.32/619,510.48 = 303,932.96/x
  3. Step 3: Cross multiply
    449,076.32x = 619,510.48 × 303,932.96
  4. Step 4: Simplify right side
    449,076.32x = 188,289,653,937.42
  5. Step 5: Solve for x
    x = 188,289,653,937.42/449,076.32
  6. Step 6: Final answer
    x = 419,282.08

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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.