Home / 1,400,745.06-2,101,773.78-690,385.68

Finding the Fourth Proportional to 1,400,745.06, 2,101,773.78 and 690,385.68

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Solution

The fourth proportional to 1,400,745.06, 2,101,773.78 and 690,385.68 is: 1,035,901.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,745.06 : 2,101,773.78 = 690,385.68 : x
  2. Step 2: Convert to fraction form
    1,400,745.06/2,101,773.78 = 690,385.68/x
  3. Step 3: Cross multiply
    1,400,745.06x = 2,101,773.78 × 690,385.68
  4. Step 4: Simplify right side
    1,400,745.06x = 1,451,034,520,311.47
  5. Step 5: Solve for x
    x = 1,451,034,520,311.47/1,400,745.06
  6. Step 6: Final answer
    x = 1,035,901.94

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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.