Home / 789,677.73-1,089,755.44-445,586.69

Finding the Fourth Proportional to 789,677.73, 1,089,755.44 and 445,586.69

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Solution

The fourth proportional to 789,677.73, 1,089,755.44 and 445,586.69 is: 614,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,677.73 : 1,089,755.44 = 445,586.69 : x
  2. Step 2: Convert to fraction form
    789,677.73/1,089,755.44 = 445,586.69/x
  3. Step 3: Cross multiply
    789,677.73x = 1,089,755.44 × 445,586.69
  4. Step 4: Simplify right side
    789,677.73x = 485,580,521,029.52
  5. Step 5: Solve for x
    x = 485,580,521,029.52/789,677.73
  6. Step 6: Final answer
    x = 614,909.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.