Home / 1,242,015.70-1,863,023.55-881,209.30

Finding the Fourth Proportional to 1,242,015.70, 1,863,023.55 and 881,209.30

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Solution

The fourth proportional to 1,242,015.70, 1,863,023.55 and 881,209.30 is: 1,321,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,015.70 : 1,863,023.55 = 881,209.30 : x
  2. Step 2: Convert to fraction form
    1,242,015.70/1,863,023.55 = 881,209.30/x
  3. Step 3: Cross multiply
    1,242,015.70x = 1,863,023.55 × 881,209.30
  4. Step 4: Simplify right side
    1,242,015.70x = 1,641,713,678,379.02
  5. Step 5: Solve for x
    x = 1,641,713,678,379.02/1,242,015.70
  6. Step 6: Final answer
    x = 1,321,813.95

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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.