Home / 789,426.95-1,089,409.95-426,850.71

Finding the Fourth Proportional to 789,426.95, 1,089,409.95 and 426,850.71

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Solution

The fourth proportional to 789,426.95, 1,089,409.95 and 426,850.71 is: 589,054.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,426.95 : 1,089,409.95 = 426,850.71 : x
  2. Step 2: Convert to fraction form
    789,426.95/1,089,409.95 = 426,850.71/x
  3. Step 3: Cross multiply
    789,426.95x = 1,089,409.95 × 426,850.71
  4. Step 4: Simplify right side
    789,426.95x = 465,015,410,638.57
  5. Step 5: Solve for x
    x = 465,015,410,638.57/789,426.95
  6. Step 6: Final answer
    x = 589,054.39

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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.