Home / 859,097.78-1,288,691.14-219,407.48

Finding the Fourth Proportional to 859,097.78, 1,288,691.14 and 219,407.48

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Solution

The fourth proportional to 859,097.78, 1,288,691.14 and 219,407.48 is: 329,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,097.78 : 1,288,691.14 = 219,407.48 : x
  2. Step 2: Convert to fraction form
    859,097.78/1,288,691.14 = 219,407.48/x
  3. Step 3: Cross multiply
    859,097.78x = 1,288,691.14 × 219,407.48
  4. Step 4: Simplify right side
    859,097.78x = 282,748,475,525.73
  5. Step 5: Solve for x
    x = 282,748,475,525.73/859,097.78
  6. Step 6: Final answer
    x = 329,122.58

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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.