Home / 1,400,538.30-2,100,807.45-1,339,107.90

Finding the Fourth Proportional to 1,400,538.30, 2,100,807.45 and 1,339,107.90

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Solution

The fourth proportional to 1,400,538.30, 2,100,807.45 and 1,339,107.90 is: 2,008,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,538.30 : 2,100,807.45 = 1,339,107.90 : x
  2. Step 2: Convert to fraction form
    1,400,538.30/2,100,807.45 = 1,339,107.90/x
  3. Step 3: Cross multiply
    1,400,538.30x = 2,100,807.45 × 1,339,107.90
  4. Step 4: Simplify right side
    1,400,538.30x = 2,813,207,852,673.86
  5. Step 5: Solve for x
    x = 2,813,207,852,673.86/1,400,538.30
  6. Step 6: Final answer
    x = 2,008,661.85

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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.