Home / 763,447.82-1,145,297.48-258,039.41

Finding the Fourth Proportional to 763,447.82, 1,145,297.48 and 258,039.41

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Solution

The fourth proportional to 763,447.82, 1,145,297.48 and 258,039.41 is: 387,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,447.82 : 1,145,297.48 = 258,039.41 : x
  2. Step 2: Convert to fraction form
    763,447.82/1,145,297.48 = 258,039.41/x
  3. Step 3: Cross multiply
    763,447.82x = 1,145,297.48 × 258,039.41
  4. Step 4: Simplify right side
    763,447.82x = 295,531,878,997.00
  5. Step 5: Solve for x
    x = 295,531,878,997.00/763,447.82
  6. Step 6: Final answer
    x = 387,101.61

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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.