Home / 2,145,983.40-3,218,975.10-816,114.60

Finding the Fourth Proportional to 2,145,983.40, 3,218,975.10 and 816,114.60

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Solution

The fourth proportional to 2,145,983.40, 3,218,975.10 and 816,114.60 is: 1,224,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,983.40 : 3,218,975.10 = 816,114.60 : x
  2. Step 2: Convert to fraction form
    2,145,983.40/3,218,975.10 = 816,114.60/x
  3. Step 3: Cross multiply
    2,145,983.40x = 3,218,975.10 × 816,114.60
  4. Step 4: Simplify right side
    2,145,983.40x = 2,627,052,576,146.46
  5. Step 5: Solve for x
    x = 2,627,052,576,146.46/2,145,983.40
  6. Step 6: Final answer
    x = 1,224,171.90

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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.