Home / 989,745.30-1,485,364.32-724,190.94

Finding the Fourth Proportional to 989,745.30, 1,485,364.32 and 724,190.94

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Solution

The fourth proportional to 989,745.30, 1,485,364.32 and 724,190.94 is: 1,086,832.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,745.30 : 1,485,364.32 = 724,190.94 : x
  2. Step 2: Convert to fraction form
    989,745.30/1,485,364.32 = 724,190.94/x
  3. Step 3: Cross multiply
    989,745.30x = 1,485,364.32 × 724,190.94
  4. Step 4: Simplify right side
    989,745.30x = 1,075,687,383,143.26
  5. Step 5: Solve for x
    x = 1,075,687,383,143.26/989,745.30
  6. Step 6: Final answer
    x = 1,086,832.52

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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.