Home / 3,186,694.87-4,781,455.05-1,670,017.21

Finding the Fourth Proportional to 3,186,694.87, 4,781,455.05 and 1,670,017.21

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Solution

The fourth proportional to 3,186,694.87, 4,781,455.05 and 1,670,017.21 is: 2,505,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186,694.87 : 4,781,455.05 = 1,670,017.21 : x
  2. Step 2: Convert to fraction form
    3,186,694.87/4,781,455.05 = 1,670,017.21/x
  3. Step 3: Cross multiply
    3,186,694.87x = 4,781,455.05 × 1,670,017.21
  4. Step 4: Simplify right side
    3,186,694.87x = 7,985,112,222,341.41
  5. Step 5: Solve for x
    x = 7,985,112,222,341.41/3,186,694.87
  6. Step 6: Final answer
    x = 2,505,766.18

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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.