Home / 780,464.05-1,170,696.21-219,498.55

Finding the Fourth Proportional to 780,464.05, 1,170,696.21 and 219,498.55

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Solution

The fourth proportional to 780,464.05, 1,170,696.21 and 219,498.55 is: 329,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,464.05 : 1,170,696.21 = 219,498.55 : x
  2. Step 2: Convert to fraction form
    780,464.05/1,170,696.21 = 219,498.55/x
  3. Step 3: Cross multiply
    780,464.05x = 1,170,696.21 × 219,498.55
  4. Step 4: Simplify right side
    780,464.05x = 256,966,120,585.50
  5. Step 5: Solve for x
    x = 256,966,120,585.50/780,464.05
  6. Step 6: Final answer
    x = 329,247.86

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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.