Home / 1,293,148.80-1,939,723.20-394,588.80

Finding the Fourth Proportional to 1,293,148.80, 1,939,723.20 and 394,588.80

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Solution

The fourth proportional to 1,293,148.80, 1,939,723.20 and 394,588.80 is: 591,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,148.80 : 1,939,723.20 = 394,588.80 : x
  2. Step 2: Convert to fraction form
    1,293,148.80/1,939,723.20 = 394,588.80/x
  3. Step 3: Cross multiply
    1,293,148.80x = 1,939,723.20 × 394,588.80
  4. Step 4: Simplify right side
    1,293,148.80x = 765,393,049,820.16
  5. Step 5: Solve for x
    x = 765,393,049,820.16/1,293,148.80
  6. Step 6: Final answer
    x = 591,883.20

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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.