Home / 780,394.91-1,170,592.82-219,429.41

Finding the Fourth Proportional to 780,394.91, 1,170,592.82 and 219,429.41

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Solution

The fourth proportional to 780,394.91, 1,170,592.82 and 219,429.41 is: 329,144.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,394.91 : 1,170,592.82 = 219,429.41 : x
  2. Step 2: Convert to fraction form
    780,394.91/1,170,592.82 = 219,429.41/x
  3. Step 3: Cross multiply
    780,394.91x = 1,170,592.82 × 219,429.41
  4. Step 4: Simplify right side
    780,394.91x = 256,862,490,745.69
  5. Step 5: Solve for x
    x = 256,862,490,745.69/780,394.91
  6. Step 6: Final answer
    x = 329,144.24

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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.