Home / 1,214,485.80-1,821,728.70-1,162,653.90

Finding the Fourth Proportional to 1,214,485.80, 1,821,728.70 and 1,162,653.90

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Solution

The fourth proportional to 1,214,485.80, 1,821,728.70 and 1,162,653.90 is: 1,743,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,485.80 : 1,821,728.70 = 1,162,653.90 : x
  2. Step 2: Convert to fraction form
    1,214,485.80/1,821,728.70 = 1,162,653.90/x
  3. Step 3: Cross multiply
    1,214,485.80x = 1,821,728.70 × 1,162,653.90
  4. Step 4: Simplify right side
    1,214,485.80x = 2,118,039,977,796.93
  5. Step 5: Solve for x
    x = 2,118,039,977,796.93/1,214,485.80
  6. Step 6: Final answer
    x = 1,743,980.85

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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.