Home / 789,800.94-1,089,918.51-445,639.44

Finding the Fourth Proportional to 789,800.94, 1,089,918.51 and 445,639.44

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Solution

The fourth proportional to 789,800.94, 1,089,918.51 and 445,639.44 is: 614,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,800.94 : 1,089,918.51 = 445,639.44 : x
  2. Step 2: Convert to fraction form
    789,800.94/1,089,918.51 = 445,639.44/x
  3. Step 3: Cross multiply
    789,800.94x = 1,089,918.51 × 445,639.44
  4. Step 4: Simplify right side
    789,800.94x = 485,710,674,442.03
  5. Step 5: Solve for x
    x = 485,710,674,442.03/789,800.94
  6. Step 6: Final answer
    x = 614,978.60

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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.