Home / 1,400,542.30-2,100,813.45-1,339,111.90

Finding the Fourth Proportional to 1,400,542.30, 2,100,813.45 and 1,339,111.90

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Solution

The fourth proportional to 1,400,542.30, 2,100,813.45 and 1,339,111.90 is: 2,008,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,542.30 : 2,100,813.45 = 1,339,111.90 : x
  2. Step 2: Convert to fraction form
    1,400,542.30/2,100,813.45 = 1,339,111.90/x
  3. Step 3: Cross multiply
    1,400,542.30x = 2,100,813.45 × 1,339,111.90
  4. Step 4: Simplify right side
    1,400,542.30x = 2,813,224,290,575.06
  5. Step 5: Solve for x
    x = 2,813,224,290,575.06/1,400,542.30
  6. Step 6: Final answer
    x = 2,008,667.85

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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.