Home / 726,819-1,090,142.62-194,381.28

Finding the Fourth Proportional to 726,819, 1,090,142.62 and 194,381.28

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Solution

The fourth proportional to 726,819, 1,090,142.62 and 194,381.28 is: 291,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,819 : 1,090,142.62 = 194,381.28 : x
  2. Step 2: Convert to fraction form
    726,819/1,090,142.62 = 194,381.28/x
  3. Step 3: Cross multiply
    726,819x = 1,090,142.62 × 194,381.28
  4. Step 4: Simplify right side
    726,819x = 211,903,317,858.15
  5. Step 5: Solve for x
    x = 211,903,317,858.15/726,819
  6. Step 6: Final answer
    x = 291,548.95

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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.