Home / 819,727.75-1,228,747.06-314,171.11

Finding the Fourth Proportional to 819,727.75, 1,228,747.06 and 314,171.11

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Solution

The fourth proportional to 819,727.75, 1,228,747.06 and 314,171.11 is: 470,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,727.75 : 1,228,747.06 = 314,171.11 : x
  2. Step 2: Convert to fraction form
    819,727.75/1,228,747.06 = 314,171.11/x
  3. Step 3: Cross multiply
    819,727.75x = 1,228,747.06 × 314,171.11
  4. Step 4: Simplify right side
    819,727.75x = 386,036,827,749.44
  5. Step 5: Solve for x
    x = 386,036,827,749.44/819,727.75
  6. Step 6: Final answer
    x = 470,932.97

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1.5x scale

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.