Home / 1,888,771.12-2,833,992.92-989,999.20

Finding the Fourth Proportional to 1,888,771.12, 2,833,992.92 and 989,999.20

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Solution

The fourth proportional to 1,888,771.12, 2,833,992.92 and 989,999.20 is: 1,485,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,771.12 : 2,833,992.92 = 989,999.20 : x
  2. Step 2: Convert to fraction form
    1,888,771.12/2,833,992.92 = 989,999.20/x
  3. Step 3: Cross multiply
    1,888,771.12x = 2,833,992.92 × 989,999.20
  4. Step 4: Simplify right side
    1,888,771.12x = 2,805,650,723,605.66
  5. Step 5: Solve for x
    x = 2,805,650,723,605.66/1,888,771.12
  6. Step 6: Final answer
    x = 1,485,437.12

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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.