Home / 3,908,471.80-5,862,425.10-1,212,728.20

Finding the Fourth Proportional to 3,908,471.80, 5,862,425.10 and 1,212,728.20

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Solution

The fourth proportional to 3,908,471.80, 5,862,425.10 and 1,212,728.20 is: 1,819,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,471.80 : 5,862,425.10 = 1,212,728.20 : x
  2. Step 2: Convert to fraction form
    3,908,471.80/5,862,425.10 = 1,212,728.20/x
  3. Step 3: Cross multiply
    3,908,471.80x = 5,862,425.10 × 1,212,728.20
  4. Step 4: Simplify right side
    3,908,471.80x = 7,109,528,239,157.82
  5. Step 5: Solve for x
    x = 7,109,528,239,157.82/3,908,471.80
  6. Step 6: Final answer
    x = 1,819,004.61

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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.