Home / 789,660.54-1,089,639.27-445,501.89

Finding the Fourth Proportional to 789,660.54, 1,089,639.27 and 445,501.89

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Solution

The fourth proportional to 789,660.54, 1,089,639.27 and 445,501.89 is: 614,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,660.54 : 1,089,639.27 = 445,501.89 : x
  2. Step 2: Convert to fraction form
    789,660.54/1,089,639.27 = 445,501.89/x
  3. Step 3: Cross multiply
    789,660.54x = 1,089,639.27 × 445,501.89
  4. Step 4: Simplify right side
    789,660.54x = 485,436,354,203.22
  5. Step 5: Solve for x
    x = 485,436,354,203.22/789,660.54
  6. Step 6: Final answer
    x = 614,740.55

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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.