Home / 1,109,381.38-1,664,203.28-361,427.38

Finding the Fourth Proportional to 1,109,381.38, 1,664,203.28 and 361,427.38

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Solution

The fourth proportional to 1,109,381.38, 1,664,203.28 and 361,427.38 is: 542,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,381.38 : 1,664,203.28 = 361,427.38 : x
  2. Step 2: Convert to fraction form
    1,109,381.38/1,664,203.28 = 361,427.38/x
  3. Step 3: Cross multiply
    1,109,381.38x = 1,664,203.28 × 361,427.38
  4. Step 4: Simplify right side
    1,109,381.38x = 601,488,631,277.81
  5. Step 5: Solve for x
    x = 601,488,631,277.81/1,109,381.38
  6. Step 6: Final answer
    x = 542,183.82

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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.