Home / 993,620.40-1,489,701.60-394,285.20

Finding the Fourth Proportional to 993,620.40, 1,489,701.60 and 394,285.20

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Solution

The fourth proportional to 993,620.40, 1,489,701.60 and 394,285.20 is: 591,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,620.40 : 1,489,701.60 = 394,285.20 : x
  2. Step 2: Convert to fraction form
    993,620.40/1,489,701.60 = 394,285.20/x
  3. Step 3: Cross multiply
    993,620.40x = 1,489,701.60 × 394,285.20
  4. Step 4: Simplify right side
    993,620.40x = 587,367,293,296.32
  5. Step 5: Solve for x
    x = 587,367,293,296.32/993,620.40
  6. Step 6: Final answer
    x = 591,138.52

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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.