Home / 1,218,122.60-1,821,999.90-1,092,669.80

Finding the Fourth Proportional to 1,218,122.60, 1,821,999.90 and 1,092,669.80

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Solution

The fourth proportional to 1,218,122.60, 1,821,999.90 and 1,092,669.80 is: 1,634,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,122.60 : 1,821,999.90 = 1,092,669.80 : x
  2. Step 2: Convert to fraction form
    1,218,122.60/1,821,999.90 = 1,092,669.80/x
  3. Step 3: Cross multiply
    1,218,122.60x = 1,821,999.90 × 1,092,669.80
  4. Step 4: Simplify right side
    1,218,122.60x = 1,990,844,266,333.02
  5. Step 5: Solve for x
    x = 1,990,844,266,333.02/1,218,122.60
  6. Step 6: Final answer
    x = 1,634,354.59

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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.