Home / 993,323.70-1,489,985.55-394,427.70

Finding the Fourth Proportional to 993,323.70, 1,489,985.55 and 394,427.70

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Solution

The fourth proportional to 993,323.70, 1,489,985.55 and 394,427.70 is: 591,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,323.70 : 1,489,985.55 = 394,427.70 : x
  2. Step 2: Convert to fraction form
    993,323.70/1,489,985.55 = 394,427.70/x
  3. Step 3: Cross multiply
    993,323.70x = 1,489,985.55 × 394,427.70
  4. Step 4: Simplify right side
    993,323.70x = 587,691,573,519.74
  5. Step 5: Solve for x
    x = 587,691,573,519.74/993,323.70
  6. Step 6: Final answer
    x = 591,641.55

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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.