Home / 1,208,065.80-1,812,098.70-809,934.60

Finding the Fourth Proportional to 1,208,065.80, 1,812,098.70 and 809,934.60

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Solution

The fourth proportional to 1,208,065.80, 1,812,098.70 and 809,934.60 is: 1,214,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,065.80 : 1,812,098.70 = 809,934.60 : x
  2. Step 2: Convert to fraction form
    1,208,065.80/1,812,098.70 = 809,934.60/x
  3. Step 3: Cross multiply
    1,208,065.80x = 1,812,098.70 × 809,934.60
  4. Step 4: Simplify right side
    1,208,065.80x = 1,467,681,435,745.02
  5. Step 5: Solve for x
    x = 1,467,681,435,745.02/1,208,065.80
  6. Step 6: Final answer
    x = 1,214,901.90

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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.