Home / 521,976.17-720,315.25-304,171.22

Finding the Fourth Proportional to 521,976.17, 720,315.25 and 304,171.22

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Solution

The fourth proportional to 521,976.17, 720,315.25 and 304,171.22 is: 419,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,976.17 : 720,315.25 = 304,171.22 : x
  2. Step 2: Convert to fraction form
    521,976.17/720,315.25 = 304,171.22/x
  3. Step 3: Cross multiply
    521,976.17x = 720,315.25 × 304,171.22
  4. Step 4: Simplify right side
    521,976.17x = 219,099,169,417.47
  5. Step 5: Solve for x
    x = 219,099,169,417.47/521,976.17
  6. Step 6: Final answer
    x = 419,749.37

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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.