Home / 1,603,578.70-2,211,165.31-1,021,880.37

Finding the Fourth Proportional to 1,603,578.70, 2,211,165.31 and 1,021,880.37

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Solution

The fourth proportional to 1,603,578.70, 2,211,165.31 and 1,021,880.37 is: 1,409,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,578.70 : 2,211,165.31 = 1,021,880.37 : x
  2. Step 2: Convert to fraction form
    1,603,578.70/2,211,165.31 = 1,021,880.37/x
  3. Step 3: Cross multiply
    1,603,578.70x = 2,211,165.31 × 1,021,880.37
  4. Step 4: Simplify right side
    1,603,578.70x = 2,259,546,425,113.97
  5. Step 5: Solve for x
    x = 2,259,546,425,113.97/1,603,578.70
  6. Step 6: Final answer
    x = 1,409,064.88

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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.