Home / 860,956.61-1,291,392.20-321,170.84

Finding the Fourth Proportional to 860,956.61, 1,291,392.20 and 321,170.84

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Solution

The fourth proportional to 860,956.61, 1,291,392.20 and 321,170.84 is: 481,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,956.61 : 1,291,392.20 = 321,170.84 : x
  2. Step 2: Convert to fraction form
    860,956.61/1,291,392.20 = 321,170.84/x
  3. Step 3: Cross multiply
    860,956.61x = 1,291,392.20 × 321,170.84
  4. Step 4: Simplify right side
    860,956.61x = 414,757,517,643.45
  5. Step 5: Solve for x
    x = 414,757,517,643.45/860,956.61
  6. Step 6: Final answer
    x = 481,740.33

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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.