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Finding the Fourth Proportional to 464,921.04, 641,353.80 and 303,870

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Solution

The fourth proportional to 464,921.04, 641,353.80 and 303,870 is: 419,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,921.04 : 641,353.80 = 303,870 : x
  2. Step 2: Convert to fraction form
    464,921.04/641,353.80 = 303,870/x
  3. Step 3: Cross multiply
    464,921.04x = 641,353.80 × 303,870
  4. Step 4: Simplify right side
    464,921.04x = 194,888,179,206
  5. Step 5: Solve for x
    x = 194,888,179,206/464,921.04
  6. Step 6: Final answer
    x = 419,185.54

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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.