Home / 670,112.75-1,005,293.66-220,865.19

Finding the Fourth Proportional to 670,112.75, 1,005,293.66 and 220,865.19

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Solution

The fourth proportional to 670,112.75, 1,005,293.66 and 220,865.19 is: 331,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,112.75 : 1,005,293.66 = 220,865.19 : x
  2. Step 2: Convert to fraction form
    670,112.75/1,005,293.66 = 220,865.19/x
  3. Step 3: Cross multiply
    670,112.75x = 1,005,293.66 × 220,865.19
  4. Step 4: Simplify right side
    670,112.75x = 222,034,370,347.52
  5. Step 5: Solve for x
    x = 222,034,370,347.52/670,112.75
  6. Step 6: Final answer
    x = 331,338.82

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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.