Home / 1,198,999.60-1,798,499.40-1,192,001.20

Finding the Fourth Proportional to 1,198,999.60, 1,798,499.40 and 1,192,001.20

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Solution

The fourth proportional to 1,198,999.60, 1,798,499.40 and 1,192,001.20 is: 1,788,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,999.60 : 1,798,499.40 = 1,192,001.20 : x
  2. Step 2: Convert to fraction form
    1,198,999.60/1,798,499.40 = 1,192,001.20/x
  3. Step 3: Cross multiply
    1,198,999.60x = 1,798,499.40 × 1,192,001.20
  4. Step 4: Simplify right side
    1,198,999.60x = 2,143,813,442,999.28
  5. Step 5: Solve for x
    x = 2,143,813,442,999.28/1,198,999.60
  6. Step 6: Final answer
    x = 1,788,001.80

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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.