Home / 810,286.21-1,118,188.42-447,708.61

Finding the Fourth Proportional to 810,286.21, 1,118,188.42 and 447,708.61

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Solution

The fourth proportional to 810,286.21, 1,118,188.42 and 447,708.61 is: 617,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,286.21 : 1,118,188.42 = 447,708.61 : x
  2. Step 2: Convert to fraction form
    810,286.21/1,118,188.42 = 447,708.61/x
  3. Step 3: Cross multiply
    810,286.21x = 1,118,188.42 × 447,708.61
  4. Step 4: Simplify right side
    810,286.21x = 500,622,583,236.30
  5. Step 5: Solve for x
    x = 500,622,583,236.30/810,286.21
  6. Step 6: Final answer
    x = 617,834.26

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1.5x scale

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.