Home / 681,812.25-1,022,866.01-261,088.13

Finding the Fourth Proportional to 681,812.25, 1,022,866.01 and 261,088.13

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Solution

The fourth proportional to 681,812.25, 1,022,866.01 and 261,088.13 is: 391,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,812.25 : 1,022,866.01 = 261,088.13 : x
  2. Step 2: Convert to fraction form
    681,812.25/1,022,866.01 = 261,088.13/x
  3. Step 3: Cross multiply
    681,812.25x = 1,022,866.01 × 261,088.13
  4. Step 4: Simplify right side
    681,812.25x = 267,058,167,371.69
  5. Step 5: Solve for x
    x = 267,058,167,371.69/681,812.25
  6. Step 6: Final answer
    x = 391,688.72

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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.