Home / 521,976.92-720,316.28-304,171.97

Finding the Fourth Proportional to 521,976.92, 720,316.28 and 304,171.97

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Solution

The fourth proportional to 521,976.92, 720,316.28 and 304,171.97 is: 419,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,976.92 : 720,316.28 = 304,171.97 : x
  2. Step 2: Convert to fraction form
    521,976.92/720,316.28 = 304,171.97/x
  3. Step 3: Cross multiply
    521,976.92x = 720,316.28 × 304,171.97
  4. Step 4: Simplify right side
    521,976.92x = 219,100,024,471.89
  5. Step 5: Solve for x
    x = 219,100,024,471.89/521,976.92
  6. Step 6: Final answer
    x = 419,750.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.