Finding the Fourth Proportional to 657,629.70, 921,614.70 and 657,629.70
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Solution
The fourth proportional to 657,629.70, 921,614.70 and 657,629.70 is: 921,614.70
Step by Step Solution
- Step 1: Write the proportion equation
657,629.70 : 921,614.70 = 657,629.70 : x - Step 2: Convert to fraction form
657,629.70/921,614.70 = 657,629.70/x - Step 3: Cross multiply
657,629.70x = 921,614.70 × 657,629.70 - Step 4: Simplify right side
657,629.70x = 606,081,198,676.59 - Step 5: Solve for x
x = 606,081,198,676.59/657,629.70 - Step 6: Final answer
x = 921,614.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.