Home / 1,318,480.96-1,977,910.56-407,734.24

Finding the Fourth Proportional to 1,318,480.96, 1,977,910.56 and 407,734.24

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Solution

The fourth proportional to 1,318,480.96, 1,977,910.56 and 407,734.24 is: 611,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,480.96 : 1,977,910.56 = 407,734.24 : x
  2. Step 2: Convert to fraction form
    1,318,480.96/1,977,910.56 = 407,734.24/x
  3. Step 3: Cross multiply
    1,318,480.96x = 1,977,910.56 × 407,734.24
  4. Step 4: Simplify right side
    1,318,480.96x = 806,461,858,969.58
  5. Step 5: Solve for x
    x = 806,461,858,969.58/1,318,480.96
  6. Step 6: Final answer
    x = 611,659.84

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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.