Home / 621,713.82-931,350.38-322,390.06

Finding the Fourth Proportional to 621,713.82, 931,350.38 and 322,390.06

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Solution

The fourth proportional to 621,713.82, 931,350.38 and 322,390.06 is: 482,952.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,713.82 : 931,350.38 = 322,390.06 : x
  2. Step 2: Convert to fraction form
    621,713.82/931,350.38 = 322,390.06/x
  3. Step 3: Cross multiply
    621,713.82x = 931,350.38 × 322,390.06
  4. Step 4: Simplify right side
    621,713.82x = 300,258,104,889.22
  5. Step 5: Solve for x
    x = 300,258,104,889.22/621,713.82
  6. Step 6: Final answer
    x = 482,952.28

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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.