Home / 789,100.68-1,088,956.80-449,571.36

Finding the Fourth Proportional to 789,100.68, 1,088,956.80 and 449,571.36

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Solution

The fourth proportional to 789,100.68, 1,088,956.80 and 449,571.36 is: 620,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,100.68 : 1,088,956.80 = 449,571.36 : x
  2. Step 2: Convert to fraction form
    789,100.68/1,088,956.80 = 449,571.36/x
  3. Step 3: Cross multiply
    789,100.68x = 1,088,956.80 × 449,571.36
  4. Step 4: Simplify right side
    789,100.68x = 489,563,789,557.25
  5. Step 5: Solve for x
    x = 489,563,789,557.25/789,100.68
  6. Step 6: Final answer
    x = 620,407.26

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1.5x scale

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.