Home / 1,198,861.80-1,798,983.90-451,444.20

Finding the Fourth Proportional to 1,198,861.80, 1,798,983.90 and 451,444.20

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Solution

The fourth proportional to 1,198,861.80, 1,798,983.90 and 451,444.20 is: 677,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,861.80 : 1,798,983.90 = 451,444.20 : x
  2. Step 2: Convert to fraction form
    1,198,861.80/1,798,983.90 = 451,444.20/x
  3. Step 3: Cross multiply
    1,198,861.80x = 1,798,983.90 × 451,444.20
  4. Step 4: Simplify right side
    1,198,861.80x = 812,140,847,548.38
  5. Step 5: Solve for x
    x = 812,140,847,548.38/1,198,861.80
  6. Step 6: Final answer
    x = 677,426.58

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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.