Home / 987,745.60-1,481,618.40-322,964.80

Finding the Fourth Proportional to 987,745.60, 1,481,618.40 and 322,964.80

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Solution

The fourth proportional to 987,745.60, 1,481,618.40 and 322,964.80 is: 484,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,745.60 : 1,481,618.40 = 322,964.80 : x
  2. Step 2: Convert to fraction form
    987,745.60/1,481,618.40 = 322,964.80/x
  3. Step 3: Cross multiply
    987,745.60x = 1,481,618.40 × 322,964.80
  4. Step 4: Simplify right side
    987,745.60x = 478,510,590,232.32
  5. Step 5: Solve for x
    x = 478,510,590,232.32/987,745.60
  6. Step 6: Final answer
    x = 484,447.20

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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.