Home / 1,293,989.80-1,940,639.10-395,429.80

Finding the Fourth Proportional to 1,293,989.80, 1,940,639.10 and 395,429.80

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Solution

The fourth proportional to 1,293,989.80, 1,940,639.10 and 395,429.80 is: 593,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,989.80 : 1,940,639.10 = 395,429.80 : x
  2. Step 2: Convert to fraction form
    1,293,989.80/1,940,639.10 = 395,429.80/x
  3. Step 3: Cross multiply
    1,293,989.80x = 1,940,639.10 × 395,429.80
  4. Step 4: Simplify right side
    1,293,989.80x = 767,386,531,185.18
  5. Step 5: Solve for x
    x = 767,386,531,185.18/1,293,989.80
  6. Step 6: Final answer
    x = 593,039.09

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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.