Home / 3,012,990.87-4,519,783.98-990,414.39

Finding the Fourth Proportional to 3,012,990.87, 4,519,783.98 and 990,414.39

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Solution

The fourth proportional to 3,012,990.87, 4,519,783.98 and 990,414.39 is: 1,485,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012,990.87 : 4,519,783.98 = 990,414.39 : x
  2. Step 2: Convert to fraction form
    3,012,990.87/4,519,783.98 = 990,414.39/x
  3. Step 3: Cross multiply
    3,012,990.87x = 4,519,783.98 × 990,414.39
  4. Step 4: Simplify right side
    3,012,990.87x = 4,476,459,093,483.47
  5. Step 5: Solve for x
    x = 4,476,459,093,483.47/3,012,990.87
  6. Step 6: Final answer
    x = 1,485,719.44

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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.