Finding the Fourth Proportional to 789,888.48, 1,090,043.73 and 427,312.26
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Solution
The fourth proportional to 789,888.48, 1,090,043.73 and 427,312.26 is: 589,689.64
Step by Step Solution
- Step 1: Write the proportion equation
789,888.48 : 1,090,043.73 = 427,312.26 : x - Step 2: Convert to fraction form
789,888.48/1,090,043.73 = 427,312.26/x - Step 3: Cross multiply
789,888.48x = 1,090,043.73 × 427,312.26 - Step 4: Simplify right side
789,888.48x = 465,789,049,765.13 - Step 5: Solve for x
x = 465,789,049,765.13/789,888.48 - Step 6: Final answer
x = 589,689.64
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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.