Home / 1,121,480.10-1,680,215.40-682,500.60

Finding the Fourth Proportional to 1,121,480.10, 1,680,215.40 and 682,500.60

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Solution

The fourth proportional to 1,121,480.10, 1,680,215.40 and 682,500.60 is: 1,022,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,480.10 : 1,680,215.40 = 682,500.60 : x
  2. Step 2: Convert to fraction form
    1,121,480.10/1,680,215.40 = 682,500.60/x
  3. Step 3: Cross multiply
    1,121,480.10x = 1,680,215.40 × 682,500.60
  4. Step 4: Simplify right side
    1,121,480.10x = 1,146,748,018,629.24
  5. Step 5: Solve for x
    x = 1,146,748,018,629.24/1,121,480.10
  6. Step 6: Final answer
    x = 1,022,530.87

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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.