Home / 819,942.64-1,230,293.58-314,334.52

Finding the Fourth Proportional to 819,942.64, 1,230,293.58 and 314,334.52

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Solution

The fourth proportional to 819,942.64, 1,230,293.58 and 314,334.52 is: 471,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,942.64 : 1,230,293.58 = 314,334.52 : x
  2. Step 2: Convert to fraction form
    819,942.64/1,230,293.58 = 314,334.52/x
  3. Step 3: Cross multiply
    819,942.64x = 1,230,293.58 × 314,334.52
  4. Step 4: Simplify right side
    819,942.64x = 386,723,741,928.38
  5. Step 5: Solve for x
    x = 386,723,741,928.38/819,942.64
  6. Step 6: Final answer
    x = 471,647.31

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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.