Home / 1,962,720.80-2,942,007.60-1,119,456.80

Finding the Fourth Proportional to 1,962,720.80, 2,942,007.60 and 1,119,456.80

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Solution

The fourth proportional to 1,962,720.80, 2,942,007.60 and 1,119,456.80 is: 1,678,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962,720.80 : 2,942,007.60 = 1,119,456.80 : x
  2. Step 2: Convert to fraction form
    1,962,720.80/2,942,007.60 = 1,119,456.80/x
  3. Step 3: Cross multiply
    1,962,720.80x = 2,942,007.60 × 1,119,456.80
  4. Step 4: Simplify right side
    1,962,720.80x = 3,293,450,413,471.68
  5. Step 5: Solve for x
    x = 3,293,450,413,471.68/1,962,720.80
  6. Step 6: Final answer
    x = 1,678,002.50

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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.