Finding the Fourth Proportional to 1,020,614.49, 1,529,172.14 and 720,558.09
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Solution
The fourth proportional to 1,020,614.49, 1,529,172.14 and 720,558.09 is: 1,079,601.91
Step by Step Solution
- Step 1: Write the proportion equation
1,020,614.49 : 1,529,172.14 = 720,558.09 : x - Step 2: Convert to fraction form
1,020,614.49/1,529,172.14 = 720,558.09/x - Step 3: Cross multiply
1,020,614.49x = 1,529,172.14 × 720,558.09 - Step 4: Simplify right side
1,020,614.49x = 1,101,857,352,876.82 - Step 5: Solve for x
x = 1,101,857,352,876.82/1,020,614.49 - Step 6: Final answer
x = 1,079,601.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.