Home / 1,293,213.68-1,939,820.54-394,660.02

Finding the Fourth Proportional to 1,293,213.68, 1,939,820.54 and 394,660.02

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Solution

The fourth proportional to 1,293,213.68, 1,939,820.54 and 394,660.02 is: 591,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,213.68 : 1,939,820.54 = 394,660.02 : x
  2. Step 2: Convert to fraction form
    1,293,213.68/1,939,820.54 = 394,660.02/x
  3. Step 3: Cross multiply
    1,293,213.68x = 1,939,820.54 × 394,660.02
  4. Step 4: Simplify right side
    1,293,213.68x = 765,569,611,139.51
  5. Step 5: Solve for x
    x = 765,569,611,139.51/1,293,213.68
  6. Step 6: Final answer
    x = 591,990.04

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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.