Home / 892,217.16-1,231,739.46-687,820.14

Finding the Fourth Proportional to 892,217.16, 1,231,739.46 and 687,820.14

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Solution

The fourth proportional to 892,217.16, 1,231,739.46 and 687,820.14 is: 949,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,217.16 : 1,231,739.46 = 687,820.14 : x
  2. Step 2: Convert to fraction form
    892,217.16/1,231,739.46 = 687,820.14/x
  3. Step 3: Cross multiply
    892,217.16x = 1,231,739.46 × 687,820.14
  4. Step 4: Simplify right side
    892,217.16x = 847,215,207,820.72
  5. Step 5: Solve for x
    x = 847,215,207,820.72/892,217.16
  6. Step 6: Final answer
    x = 949,561.66

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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.