Home / 1,380,409.64-2,071,112.68-481,983.72

Finding the Fourth Proportional to 1,380,409.64, 2,071,112.68 and 481,983.72

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Solution

The fourth proportional to 1,380,409.64, 2,071,112.68 and 481,983.72 is: 723,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,409.64 : 2,071,112.68 = 481,983.72 : x
  2. Step 2: Convert to fraction form
    1,380,409.64/2,071,112.68 = 481,983.72/x
  3. Step 3: Cross multiply
    1,380,409.64x = 2,071,112.68 × 481,983.72
  4. Step 4: Simplify right side
    1,380,409.64x = 998,242,594,045.57
  5. Step 5: Solve for x
    x = 998,242,594,045.57/1,380,409.64
  6. Step 6: Final answer
    x = 723,149.54

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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.