Home / 1,515,560.64-2,091,324.78-836,453.40

Finding the Fourth Proportional to 1,515,560.64, 2,091,324.78 and 836,453.40

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Solution

The fourth proportional to 1,515,560.64, 2,091,324.78 and 836,453.40 is: 1,154,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,560.64 : 2,091,324.78 = 836,453.40 : x
  2. Step 2: Convert to fraction form
    1,515,560.64/2,091,324.78 = 836,453.40/x
  3. Step 3: Cross multiply
    1,515,560.64x = 2,091,324.78 × 836,453.40
  4. Step 4: Simplify right side
    1,515,560.64x = 1,749,295,722,735.25
  5. Step 5: Solve for x
    x = 1,749,295,722,735.25/1,515,560.64
  6. Step 6: Final answer
    x = 1,154,223.51

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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.