Home / 1,318,481.96-1,977,912.06-407,735.24

Finding the Fourth Proportional to 1,318,481.96, 1,977,912.06 and 407,735.24

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Solution

The fourth proportional to 1,318,481.96, 1,977,912.06 and 407,735.24 is: 611,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,481.96 : 1,977,912.06 = 407,735.24 : x
  2. Step 2: Convert to fraction form
    1,318,481.96/1,977,912.06 = 407,735.24/x
  3. Step 3: Cross multiply
    1,318,481.96x = 1,977,912.06 × 407,735.24
  4. Step 4: Simplify right side
    1,318,481.96x = 806,464,448,482.99
  5. Step 5: Solve for x
    x = 806,464,448,482.99/1,318,481.96
  6. Step 6: Final answer
    x = 611,661.34

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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.