Home / 786,907.72-1,086,016.76-481,163.30

Finding the Fourth Proportional to 786,907.72, 1,086,016.76 and 481,163.30

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Solution

The fourth proportional to 786,907.72, 1,086,016.76 and 481,163.30 is: 664,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,907.72 : 1,086,016.76 = 481,163.30 : x
  2. Step 2: Convert to fraction form
    786,907.72/1,086,016.76 = 481,163.30/x
  3. Step 3: Cross multiply
    786,907.72x = 1,086,016.76 × 481,163.30
  4. Step 4: Simplify right side
    786,907.72x = 522,551,408,096.91
  5. Step 5: Solve for x
    x = 522,551,408,096.91/786,907.72
  6. Step 6: Final answer
    x = 664,056.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.