Home / 645,004.40-967,257.66-212,618.03

Finding the Fourth Proportional to 645,004.40, 967,257.66 and 212,618.03

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Solution

The fourth proportional to 645,004.40, 967,257.66 and 212,618.03 is: 318,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,004.40 : 967,257.66 = 212,618.03 : x
  2. Step 2: Convert to fraction form
    645,004.40/967,257.66 = 212,618.03/x
  3. Step 3: Cross multiply
    645,004.40x = 967,257.66 × 212,618.03
  4. Step 4: Simplify right side
    645,004.40x = 205,656,418,171.61
  5. Step 5: Solve for x
    x = 205,656,418,171.61/645,004.40
  6. Step 6: Final answer
    x = 318,844.98

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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.