Home / 1,205,216.90-1,807,930.41-395,358.49

Finding the Fourth Proportional to 1,205,216.90, 1,807,930.41 and 395,358.49

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Solution

The fourth proportional to 1,205,216.90, 1,807,930.41 and 395,358.49 is: 593,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,216.90 : 1,807,930.41 = 395,358.49 : x
  2. Step 2: Convert to fraction form
    1,205,216.90/1,807,930.41 = 395,358.49/x
  3. Step 3: Cross multiply
    1,205,216.90x = 1,807,930.41 × 395,358.49
  4. Step 4: Simplify right side
    1,205,216.90x = 714,780,636,922.68
  5. Step 5: Solve for x
    x = 714,780,636,922.68/1,205,216.90
  6. Step 6: Final answer
    x = 593,072.20

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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.