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Finding the Fourth Proportional to 3,977,998.40, 5,969,330.40 and 1,453,908.80

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Solution

The fourth proportional to 3,977,998.40, 5,969,330.40 and 1,453,908.80 is: 2,181,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977,998.40 : 5,969,330.40 = 1,453,908.80 : x
  2. Step 2: Convert to fraction form
    3,977,998.40/5,969,330.40 = 1,453,908.80/x
  3. Step 3: Cross multiply
    3,977,998.40x = 5,969,330.40 × 1,453,908.80
  4. Step 4: Simplify right side
    3,977,998.40x = 8,678,861,998,667.52
  5. Step 5: Solve for x
    x = 8,678,861,998,667.52/3,977,998.40
  6. Step 6: Final answer
    x = 2,181,715.81

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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.