Home / 819,918.46-1,230,257.58-314,310.52

Finding the Fourth Proportional to 819,918.46, 1,230,257.58 and 314,310.52

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Solution

The fourth proportional to 819,918.46, 1,230,257.58 and 314,310.52 is: 471,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,918.46 : 1,230,257.58 = 314,310.52 : x
  2. Step 2: Convert to fraction form
    819,918.46/1,230,257.58 = 314,310.52/x
  3. Step 3: Cross multiply
    819,918.46x = 1,230,257.58 × 314,310.52
  4. Step 4: Simplify right side
    819,918.46x = 386,682,899,703.74
  5. Step 5: Solve for x
    x = 386,682,899,703.74/819,918.46
  6. Step 6: Final answer
    x = 471,611.41

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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.