Finding the Fourth Proportional to 1,259,511.09, 1,738,125.43 and 686,551.25
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Solution
The fourth proportional to 1,259,511.09, 1,738,125.43 and 686,551.25 is: 947,440.80
Step by Step Solution
- Step 1: Write the proportion equation
1,259,511.09 : 1,738,125.43 = 686,551.25 : x - Step 2: Convert to fraction form
1,259,511.09/1,738,125.43 = 686,551.25/x - Step 3: Cross multiply
1,259,511.09x = 1,738,125.43 × 686,551.25 - Step 4: Simplify right side
1,259,511.09x = 1,193,312,189,252.22 - Step 5: Solve for x
x = 1,193,312,189,252.22/1,259,511.09 - Step 6: Final answer
x = 947,440.80
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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.