Home / 1,242,186.35-1,863,279.96-389,324.18

Finding the Fourth Proportional to 1,242,186.35, 1,863,279.96 and 389,324.18

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Solution

The fourth proportional to 1,242,186.35, 1,863,279.96 and 389,324.18 is: 583,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,186.35 : 1,863,279.96 = 389,324.18 : x
  2. Step 2: Convert to fraction form
    1,242,186.35/1,863,279.96 = 389,324.18/x
  3. Step 3: Cross multiply
    1,242,186.35x = 1,863,279.96 × 389,324.18
  4. Step 4: Simplify right side
    1,242,186.35x = 725,419,945,735.67
  5. Step 5: Solve for x
    x = 725,419,945,735.67/1,242,186.35
  6. Step 6: Final answer
    x = 583,986.41

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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.