Home / 820,317.55-1,228,093.41-477,716.41

Finding the Fourth Proportional to 820,317.55, 1,228,093.41 and 477,716.41

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Solution

The fourth proportional to 820,317.55, 1,228,093.41 and 477,716.41 is: 715,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,317.55 : 1,228,093.41 = 477,716.41 : x
  2. Step 2: Convert to fraction form
    820,317.55/1,228,093.41 = 477,716.41/x
  3. Step 3: Cross multiply
    820,317.55x = 1,228,093.41 × 477,716.41
  4. Step 4: Simplify right side
    820,317.55x = 586,680,374,969.86
  5. Step 5: Solve for x
    x = 586,680,374,969.86/820,317.55
  6. Step 6: Final answer
    x = 715,186.91

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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.