Home / 1,380,403.71-2,071,103.87-481,977.83

Finding the Fourth Proportional to 1,380,403.71, 2,071,103.87 and 481,977.83

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Solution

The fourth proportional to 1,380,403.71, 2,071,103.87 and 481,977.83 is: 723,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,403.71 : 2,071,103.87 = 481,977.83 : x
  2. Step 2: Convert to fraction form
    1,380,403.71/2,071,103.87 = 481,977.83/x
  3. Step 3: Cross multiply
    1,380,403.71x = 2,071,103.87 × 481,977.83
  4. Step 4: Simplify right side
    1,380,403.71x = 998,226,148,967.20
  5. Step 5: Solve for x
    x = 998,226,148,967.20/1,380,403.71
  6. Step 6: Final answer
    x = 723,140.73

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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.