Home / 773,942.72-1,161,362.28-324,623.60

Finding the Fourth Proportional to 773,942.72, 1,161,362.28 and 324,623.60

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Solution

The fourth proportional to 773,942.72, 1,161,362.28 and 324,623.60 is: 487,123.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,942.72 : 1,161,362.28 = 324,623.60 : x
  2. Step 2: Convert to fraction form
    773,942.72/1,161,362.28 = 324,623.60/x
  3. Step 3: Cross multiply
    773,942.72x = 1,161,362.28 × 324,623.60
  4. Step 4: Simplify right side
    773,942.72x = 377,005,604,237.81
  5. Step 5: Solve for x
    x = 377,005,604,237.81/773,942.72
  6. Step 6: Final answer
    x = 487,123.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.