Home / 1,619,091.40-2,430,105.90-820,928.20

Finding the Fourth Proportional to 1,619,091.40, 2,430,105.90 and 820,928.20

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Solution

The fourth proportional to 1,619,091.40, 2,430,105.90 and 820,928.20 is: 1,232,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,091.40 : 2,430,105.90 = 820,928.20 : x
  2. Step 2: Convert to fraction form
    1,619,091.40/2,430,105.90 = 820,928.20/x
  3. Step 3: Cross multiply
    1,619,091.40x = 2,430,105.90 × 820,928.20
  4. Step 4: Simplify right side
    1,619,091.40x = 1,994,942,462,296.38
  5. Step 5: Solve for x
    x = 1,994,942,462,296.38/1,619,091.40
  6. Step 6: Final answer
    x = 1,232,137.03

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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.