Finding the Fourth Proportional to 789,974.37, 1,090,164.69 and 427,397.99
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Solution
The fourth proportional to 789,974.37, 1,090,164.69 and 427,397.99 is: 589,809.25
Step by Step Solution
- Step 1: Write the proportion equation
789,974.37 : 1,090,164.69 = 427,397.99 : x - Step 2: Convert to fraction form
789,974.37/1,090,164.69 = 427,397.99/x - Step 3: Cross multiply
789,974.37x = 1,090,164.69 × 427,397.99 - Step 4: Simplify right side
789,974.37x = 465,934,191,824.15 - Step 5: Solve for x
x = 465,934,191,824.15/789,974.37 - Step 6: Final answer
x = 589,809.25
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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.