Home / 3,012,988.87-4,519,780.98-990,412.39

Finding the Fourth Proportional to 3,012,988.87, 4,519,780.98 and 990,412.39

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Solution

The fourth proportional to 3,012,988.87, 4,519,780.98 and 990,412.39 is: 1,485,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012,988.87 : 4,519,780.98 = 990,412.39 : x
  2. Step 2: Convert to fraction form
    3,012,988.87/4,519,780.98 = 990,412.39/x
  3. Step 3: Cross multiply
    3,012,988.87x = 4,519,780.98 × 990,412.39
  4. Step 4: Simplify right side
    3,012,988.87x = 4,476,447,082,678.34
  5. Step 5: Solve for x
    x = 4,476,447,082,678.34/3,012,988.87
  6. Step 6: Final answer
    x = 1,485,716.44

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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.