Home / 2,890,395.30-3,988,990.45-1,601,639.94

Finding the Fourth Proportional to 2,890,395.30, 3,988,990.45 and 1,601,639.94

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Solution

The fourth proportional to 2,890,395.30, 3,988,990.45 and 1,601,639.94 is: 2,210,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,395.30 : 3,988,990.45 = 1,601,639.94 : x
  2. Step 2: Convert to fraction form
    2,890,395.30/3,988,990.45 = 1,601,639.94/x
  3. Step 3: Cross multiply
    2,890,395.30x = 3,988,990.45 × 1,601,639.94
  4. Step 4: Simplify right side
    2,890,395.30x = 6,388,926,424,998.57
  5. Step 5: Solve for x
    x = 6,388,926,424,998.57/2,890,395.30
  6. Step 6: Final answer
    x = 2,210,398.84

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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.