Home / 1,003,436.46-1,384,163.28-640,451.25

Finding the Fourth Proportional to 1,003,436.46, 1,384,163.28 and 640,451.25

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Solution

The fourth proportional to 1,003,436.46, 1,384,163.28 and 640,451.25 is: 883,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,436.46 : 1,384,163.28 = 640,451.25 : x
  2. Step 2: Convert to fraction form
    1,003,436.46/1,384,163.28 = 640,451.25/x
  3. Step 3: Cross multiply
    1,003,436.46x = 1,384,163.28 × 640,451.25
  4. Step 4: Simplify right side
    1,003,436.46x = 886,489,102,880.10
  5. Step 5: Solve for x
    x = 886,489,102,880.10/1,003,436.46
  6. Step 6: Final answer
    x = 883,453.15

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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.