Home / 861,661.24-1,189,054.16-493,874.72

Finding the Fourth Proportional to 861,661.24, 1,189,054.16 and 493,874.72

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Solution

The fourth proportional to 861,661.24, 1,189,054.16 and 493,874.72 is: 681,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,661.24 : 1,189,054.16 = 493,874.72 : x
  2. Step 2: Convert to fraction form
    861,661.24/1,189,054.16 = 493,874.72/x
  3. Step 3: Cross multiply
    861,661.24x = 1,189,054.16 × 493,874.72
  4. Step 4: Simplify right side
    861,661.24x = 587,243,790,334.84
  5. Step 5: Solve for x
    x = 587,243,790,334.84/861,661.24
  6. Step 6: Final answer
    x = 681,525.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.