Home / 3,290,809.40-4,930,914.90-1,866,630.20

Finding the Fourth Proportional to 3,290,809.40, 4,930,914.90 and 1,866,630.20

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Solution

The fourth proportional to 3,290,809.40, 4,930,914.90 and 1,866,630.20 is: 2,796,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290,809.40 : 4,930,914.90 = 1,866,630.20 : x
  2. Step 2: Convert to fraction form
    3,290,809.40/4,930,914.90 = 1,866,630.20/x
  3. Step 3: Cross multiply
    3,290,809.40x = 4,930,914.90 × 1,866,630.20
  4. Step 4: Simplify right side
    3,290,809.40x = 9,204,194,665,969.98
  5. Step 5: Solve for x
    x = 9,204,194,665,969.98/3,290,809.40
  6. Step 6: Final answer
    x = 2,796,939.46

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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.