Home / 1,900,860.34-2,621,085.78-1,211,441.08

Finding the Fourth Proportional to 1,900,860.34, 2,621,085.78 and 1,211,441.08

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Solution

The fourth proportional to 1,900,860.34, 2,621,085.78 and 1,211,441.08 is: 1,670,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900,860.34 : 2,621,085.78 = 1,211,441.08 : x
  2. Step 2: Convert to fraction form
    1,900,860.34/2,621,085.78 = 1,211,441.08/x
  3. Step 3: Cross multiply
    1,900,860.34x = 2,621,085.78 × 1,211,441.08
  4. Step 4: Simplify right side
    1,900,860.34x = 3,175,290,988,095.84
  5. Step 5: Solve for x
    x = 3,175,290,988,095.84/1,900,860.34
  6. Step 6: Final answer
    x = 1,670,449.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.