Home / 1,242,356.93-1,863,481.19-389,409.12

Finding the Fourth Proportional to 1,242,356.93, 1,863,481.19 and 389,409.12

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Solution

The fourth proportional to 1,242,356.93, 1,863,481.19 and 389,409.12 is: 584,096.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,356.93 : 1,863,481.19 = 389,409.12 : x
  2. Step 2: Convert to fraction form
    1,242,356.93/1,863,481.19 = 389,409.12/x
  3. Step 3: Cross multiply
    1,242,356.93x = 1,863,481.19 × 389,409.12
  4. Step 4: Simplify right side
    1,242,356.93x = 725,656,568,387.41
  5. Step 5: Solve for x
    x = 725,656,568,387.41/1,242,356.93
  6. Step 6: Final answer
    x = 584,096.69

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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.