Home / 1,431,408.10-2,147,112.15-684,912.10

Finding the Fourth Proportional to 1,431,408.10, 2,147,112.15 and 684,912.10

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Solution

The fourth proportional to 1,431,408.10, 2,147,112.15 and 684,912.10 is: 1,027,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,408.10 : 2,147,112.15 = 684,912.10 : x
  2. Step 2: Convert to fraction form
    1,431,408.10/2,147,112.15 = 684,912.10/x
  3. Step 3: Cross multiply
    1,431,408.10x = 2,147,112.15 × 684,912.10
  4. Step 4: Simplify right side
    1,431,408.10x = 1,470,583,091,592.02
  5. Step 5: Solve for x
    x = 1,470,583,091,592.02/1,431,408.10
  6. Step 6: Final answer
    x = 1,027,368.15

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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.