Home / 1,286,725.03-1,930,101.41-388,174.56

Finding the Fourth Proportional to 1,286,725.03, 1,930,101.41 and 388,174.56

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Solution

The fourth proportional to 1,286,725.03, 1,930,101.41 and 388,174.56 is: 582,266.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,725.03 : 1,930,101.41 = 388,174.56 : x
  2. Step 2: Convert to fraction form
    1,286,725.03/1,930,101.41 = 388,174.56/x
  3. Step 3: Cross multiply
    1,286,725.03x = 1,930,101.41 × 388,174.56
  4. Step 4: Simplify right side
    1,286,725.03x = 749,216,253,990.75
  5. Step 5: Solve for x
    x = 749,216,253,990.75/1,286,725.03
  6. Step 6: Final answer
    x = 582,266.01

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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.