Home / 1,431,236.33-1,975,110.44-786,722.57

Finding the Fourth Proportional to 1,431,236.33, 1,975,110.44 and 786,722.57

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Solution

The fourth proportional to 1,431,236.33, 1,975,110.44 and 786,722.57 is: 1,085,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,236.33 : 1,975,110.44 = 786,722.57 : x
  2. Step 2: Convert to fraction form
    1,431,236.33/1,975,110.44 = 786,722.57/x
  3. Step 3: Cross multiply
    1,431,236.33x = 1,975,110.44 × 786,722.57
  4. Step 4: Simplify right side
    1,431,236.33x = 1,553,863,961,390.63
  5. Step 5: Solve for x
    x = 1,553,863,961,390.63/1,431,236.33
  6. Step 6: Final answer
    x = 1,085,679.51

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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.