Home / 1,206,836.70-1,809,720.45-407,901.30

Finding the Fourth Proportional to 1,206,836.70, 1,809,720.45 and 407,901.30

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Solution

The fourth proportional to 1,206,836.70, 1,809,720.45 and 407,901.30 is: 611,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,836.70 : 1,809,720.45 = 407,901.30 : x
  2. Step 2: Convert to fraction form
    1,206,836.70/1,809,720.45 = 407,901.30/x
  3. Step 3: Cross multiply
    1,206,836.70x = 1,809,720.45 × 407,901.30
  4. Step 4: Simplify right side
    1,206,836.70x = 738,187,324,191.59
  5. Step 5: Solve for x
    x = 738,187,324,191.59/1,206,836.70
  6. Step 6: Final answer
    x = 611,671.26

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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.