Home / 1,512,101.10-2,265,818.85-1,311,480.30

Finding the Fourth Proportional to 1,512,101.10, 2,265,818.85 and 1,311,480.30

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Solution

The fourth proportional to 1,512,101.10, 2,265,818.85 and 1,311,480.30 is: 1,965,197.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,101.10 : 2,265,818.85 = 1,311,480.30 : x
  2. Step 2: Convert to fraction form
    1,512,101.10/2,265,818.85 = 1,311,480.30/x
  3. Step 3: Cross multiply
    1,512,101.10x = 2,265,818.85 × 1,311,480.30
  4. Step 4: Simplify right side
    1,512,101.10x = 2,971,576,785,143.66
  5. Step 5: Solve for x
    x = 2,971,576,785,143.66/1,512,101.10
  6. Step 6: Final answer
    x = 1,965,197.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.