Home / 1,188,712.68-1,638,158.23-1,166,849.18

Finding the Fourth Proportional to 1,188,712.68, 1,638,158.23 and 1,166,849.18

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Solution

The fourth proportional to 1,188,712.68, 1,638,158.23 and 1,166,849.18 is: 1,608,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,712.68 : 1,638,158.23 = 1,166,849.18 : x
  2. Step 2: Convert to fraction form
    1,188,712.68/1,638,158.23 = 1,166,849.18/x
  3. Step 3: Cross multiply
    1,188,712.68x = 1,638,158.23 × 1,166,849.18
  4. Step 4: Simplify right side
    1,188,712.68x = 1,911,483,586,796.62
  5. Step 5: Solve for x
    x = 1,911,483,586,796.62/1,188,712.68
  6. Step 6: Final answer
    x = 1,608,028.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.