Home / 1,319,226.80-1,978,840.20-321,954.80

Finding the Fourth Proportional to 1,319,226.80, 1,978,840.20 and 321,954.80

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Solution

The fourth proportional to 1,319,226.80, 1,978,840.20 and 321,954.80 is: 482,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,226.80 : 1,978,840.20 = 321,954.80 : x
  2. Step 2: Convert to fraction form
    1,319,226.80/1,978,840.20 = 321,954.80/x
  3. Step 3: Cross multiply
    1,319,226.80x = 1,978,840.20 × 321,954.80
  4. Step 4: Simplify right side
    1,319,226.80x = 637,097,100,822.96
  5. Step 5: Solve for x
    x = 637,097,100,822.96/1,319,226.80
  6. Step 6: Final answer
    x = 482,932.20

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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.