Finding the Fourth Proportional to 789,746.14, 1,089,845.58 and 427,169.62
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Solution
The fourth proportional to 789,746.14, 1,089,845.58 and 427,169.62 is: 589,491.86
Step by Step Solution
- Step 1: Write the proportion equation
789,746.14 : 1,089,845.58 = 427,169.62 : x - Step 2: Convert to fraction form
789,746.14/1,089,845.58 = 427,169.62/x - Step 3: Cross multiply
789,746.14x = 1,089,845.58 × 427,169.62 - Step 4: Simplify right side
789,746.14x = 465,548,922,267.28 - Step 5: Solve for x
x = 465,548,922,267.28/789,746.14 - Step 6: Final answer
x = 589,491.86
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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.