Home / 681,638.70-1,022,448.45-307,661.10

Finding the Fourth Proportional to 681,638.70, 1,022,448.45 and 307,661.10

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Solution

The fourth proportional to 681,638.70, 1,022,448.45 and 307,661.10 is: 461,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,638.70 : 1,022,448.45 = 307,661.10 : x
  2. Step 2: Convert to fraction form
    681,638.70/1,022,448.45 = 307,661.10/x
  3. Step 3: Cross multiply
    681,638.70x = 1,022,448.45 × 307,661.10
  4. Step 4: Simplify right side
    681,638.70x = 314,567,614,820.30
  5. Step 5: Solve for x
    x = 314,567,614,820.30/681,638.70
  6. Step 6: Final answer
    x = 461,487.32

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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.