Home / 1,431,122.92-1,974,160.74-1,162,384.36

Finding the Fourth Proportional to 1,431,122.92, 1,974,160.74 and 1,162,384.36

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Solution

The fourth proportional to 1,431,122.92, 1,974,160.74 and 1,162,384.36 is: 1,603,449.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,122.92 : 1,974,160.74 = 1,162,384.36 : x
  2. Step 2: Convert to fraction form
    1,431,122.92/1,974,160.74 = 1,162,384.36/x
  3. Step 3: Cross multiply
    1,431,122.92x = 1,974,160.74 × 1,162,384.36
  4. Step 4: Simplify right side
    1,431,122.92x = 2,294,733,568,302.03
  5. Step 5: Solve for x
    x = 2,294,733,568,302.03/1,431,122.92
  6. Step 6: Final answer
    x = 1,603,449.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.