Home / 2,912,990.16-4,368,540.48-1,115,778

Finding the Fourth Proportional to 2,912,990.16, 4,368,540.48 and 1,115,778

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Solution

The fourth proportional to 2,912,990.16, 4,368,540.48 and 1,115,778 is: 1,673,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,990.16 : 4,368,540.48 = 1,115,778 : x
  2. Step 2: Convert to fraction form
    2,912,990.16/4,368,540.48 = 1,115,778/x
  3. Step 3: Cross multiply
    2,912,990.16x = 4,368,540.48 × 1,115,778
  4. Step 4: Simplify right side
    2,912,990.16x = 4,874,321,359,693.44
  5. Step 5: Solve for x
    x = 4,874,321,359,693.44/2,912,990.16
  6. Step 6: Final answer
    x = 1,673,305.12

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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.