Home / 811,286.25-1,214,438.22-510,357.83

Finding the Fourth Proportional to 811,286.25, 1,214,438.22 and 510,357.83

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Solution

The fourth proportional to 811,286.25, 1,214,438.22 and 510,357.83 is: 763,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,286.25 : 1,214,438.22 = 510,357.83 : x
  2. Step 2: Convert to fraction form
    811,286.25/1,214,438.22 = 510,357.83/x
  3. Step 3: Cross multiply
    811,286.25x = 1,214,438.22 × 510,357.83
  4. Step 4: Simplify right side
    811,286.25x = 619,798,048,556.07
  5. Step 5: Solve for x
    x = 619,798,048,556.07/811,286.25
  6. Step 6: Final answer
    x = 763,969.62

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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.