Home / 686,892.71-1,030,556.34-308,138.33

Finding the Fourth Proportional to 686,892.71, 1,030,556.34 and 308,138.33

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Solution

The fourth proportional to 686,892.71, 1,030,556.34 and 308,138.33 is: 462,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,892.71 : 1,030,556.34 = 308,138.33 : x
  2. Step 2: Convert to fraction form
    686,892.71/1,030,556.34 = 308,138.33/x
  3. Step 3: Cross multiply
    686,892.71x = 1,030,556.34 × 308,138.33
  4. Step 4: Simplify right side
    686,892.71x = 317,553,904,425.73
  5. Step 5: Solve for x
    x = 317,553,904,425.73/686,892.71
  6. Step 6: Final answer
    x = 462,304.96

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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.