Finding the Fourth Proportional to 789,889.68, 1,090,042.68 and 427,312.08
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Solution
The fourth proportional to 789,889.68, 1,090,042.68 and 427,312.08 is: 589,687.92
Step by Step Solution
- Step 1: Write the proportion equation
789,889.68 : 1,090,042.68 = 427,312.08 : x - Step 2: Convert to fraction form
789,889.68/1,090,042.68 = 427,312.08/x - Step 3: Cross multiply
789,889.68x = 1,090,042.68 × 427,312.08 - Step 4: Simplify right side
789,889.68x = 465,788,404,879.57 - Step 5: Solve for x
x = 465,788,404,879.57/789,889.68 - Step 6: Final answer
x = 589,687.92
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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.