Home / 780,912.54-1,171,549.24-331,648.07

Finding the Fourth Proportional to 780,912.54, 1,171,549.24 and 331,648.07

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Solution

The fourth proportional to 780,912.54, 1,171,549.24 and 331,648.07 is: 497,548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,912.54 : 1,171,549.24 = 331,648.07 : x
  2. Step 2: Convert to fraction form
    780,912.54/1,171,549.24 = 331,648.07/x
  3. Step 3: Cross multiply
    780,912.54x = 1,171,549.24 × 331,648.07
  4. Step 4: Simplify right side
    780,912.54x = 388,542,037,669.10
  5. Step 5: Solve for x
    x = 388,542,037,669.10/780,912.54
  6. Step 6: Final answer
    x = 497,548.72

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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.