Home / 1,521,768.25-2,100,106.20-842,704.75

Finding the Fourth Proportional to 1,521,768.25, 2,100,106.20 and 842,704.75

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Solution

The fourth proportional to 1,521,768.25, 2,100,106.20 and 842,704.75 is: 1,162,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,768.25 : 2,100,106.20 = 842,704.75 : x
  2. Step 2: Convert to fraction form
    1,521,768.25/2,100,106.20 = 842,704.75/x
  3. Step 3: Cross multiply
    1,521,768.25x = 2,100,106.20 × 842,704.75
  4. Step 4: Simplify right side
    1,521,768.25x = 1,769,769,470,244.45
  5. Step 5: Solve for x
    x = 1,769,769,470,244.45/1,521,768.25
  6. Step 6: Final answer
    x = 1,162,969.11

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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.