Home / 445,112.12-666,907.48-318,103.46

Finding the Fourth Proportional to 445,112.12, 666,907.48 and 318,103.46

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Solution

The fourth proportional to 445,112.12, 666,907.48 and 318,103.46 is: 476,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,112.12 : 666,907.48 = 318,103.46 : x
  2. Step 2: Convert to fraction form
    445,112.12/666,907.48 = 318,103.46/x
  3. Step 3: Cross multiply
    445,112.12x = 666,907.48 × 318,103.46
  4. Step 4: Simplify right side
    445,112.12x = 212,145,576,887.88
  5. Step 5: Solve for x
    x = 212,145,576,887.88/445,112.12
  6. Step 6: Final answer
    x = 476,611.55

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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.