Home / 1,420,942.37-2,131,383.49-461,396.93

Finding the Fourth Proportional to 1,420,942.37, 2,131,383.49 and 461,396.93

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Solution

The fourth proportional to 1,420,942.37, 2,131,383.49 and 461,396.93 is: 692,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,942.37 : 2,131,383.49 = 461,396.93 : x
  2. Step 2: Convert to fraction form
    1,420,942.37/2,131,383.49 = 461,396.93/x
  3. Step 3: Cross multiply
    1,420,942.37x = 2,131,383.49 × 461,396.93
  4. Step 4: Simplify right side
    1,420,942.37x = 983,413,787,128.28
  5. Step 5: Solve for x
    x = 983,413,787,128.28/1,420,942.37
  6. Step 6: Final answer
    x = 692,085.63

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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.