Home / 988,172.38-1,481,895.50-339,564.64

Finding the Fourth Proportional to 988,172.38, 1,481,895.50 and 339,564.64

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Solution

The fourth proportional to 988,172.38, 1,481,895.50 and 339,564.64 is: 509,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,172.38 : 1,481,895.50 = 339,564.64 : x
  2. Step 2: Convert to fraction form
    988,172.38/1,481,895.50 = 339,564.64/x
  3. Step 3: Cross multiply
    988,172.38x = 1,481,895.50 × 339,564.64
  4. Step 4: Simplify right side
    988,172.38x = 503,199,311,975.12
  5. Step 5: Solve for x
    x = 503,199,311,975.12/988,172.38
  6. Step 6: Final answer
    x = 509,222.20

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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.