Home / 1,092,703.94-1,638,121.23-419,268.55

Finding the Fourth Proportional to 1,092,703.94, 1,638,121.23 and 419,268.55

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Solution

The fourth proportional to 1,092,703.94, 1,638,121.23 and 419,268.55 is: 628,544.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,703.94 : 1,638,121.23 = 419,268.55 : x
  2. Step 2: Convert to fraction form
    1,092,703.94/1,638,121.23 = 419,268.55/x
  3. Step 3: Cross multiply
    1,092,703.94x = 1,638,121.23 × 419,268.55
  4. Step 4: Simplify right side
    1,092,703.94x = 686,812,710,729.97
  5. Step 5: Solve for x
    x = 686,812,710,729.97/1,092,703.94
  6. Step 6: Final answer
    x = 628,544.19

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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.