Home / 780,463.05-1,170,694.71-219,497.55

Finding the Fourth Proportional to 780,463.05, 1,170,694.71 and 219,497.55

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Solution

The fourth proportional to 780,463.05, 1,170,694.71 and 219,497.55 is: 329,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,463.05 : 1,170,694.71 = 219,497.55 : x
  2. Step 2: Convert to fraction form
    780,463.05/1,170,694.71 = 219,497.55/x
  3. Step 3: Cross multiply
    780,463.05x = 1,170,694.71 × 219,497.55
  4. Step 4: Simplify right side
    780,463.05x = 256,964,620,642.96
  5. Step 5: Solve for x
    x = 256,964,620,642.96/780,463.05
  6. Step 6: Final answer
    x = 329,246.36

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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.