Home / 780,394.98-1,170,592.92-219,429.48

Finding the Fourth Proportional to 780,394.98, 1,170,592.92 and 219,429.48

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Solution

The fourth proportional to 780,394.98, 1,170,592.92 and 219,429.48 is: 329,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,394.98 : 1,170,592.92 = 219,429.48 : x
  2. Step 2: Convert to fraction form
    780,394.98/1,170,592.92 = 219,429.48/x
  3. Step 3: Cross multiply
    780,394.98x = 1,170,592.92 × 219,429.48
  4. Step 4: Simplify right side
    780,394.98x = 256,862,595,727.28
  5. Step 5: Solve for x
    x = 256,862,595,727.28/780,394.98
  6. Step 6: Final answer
    x = 329,144.35

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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.