Home / 1,235,650.40-1,853,302.80-394,287.20

Finding the Fourth Proportional to 1,235,650.40, 1,853,302.80 and 394,287.20

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Solution

The fourth proportional to 1,235,650.40, 1,853,302.80 and 394,287.20 is: 591,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,650.40 : 1,853,302.80 = 394,287.20 : x
  2. Step 2: Convert to fraction form
    1,235,650.40/1,853,302.80 = 394,287.20/x
  3. Step 3: Cross multiply
    1,235,650.40x = 1,853,302.80 × 394,287.20
  4. Step 4: Simplify right side
    1,235,650.40x = 730,733,571,764.16
  5. Step 5: Solve for x
    x = 730,733,571,764.16/1,235,650.40
  6. Step 6: Final answer
    x = 591,375.66

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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.