Finding the Fourth Proportional to 1,201,991.10, 1,658,696.37 and 658,117.02
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Solution
The fourth proportional to 1,201,991.10, 1,658,696.37 and 658,117.02 is: 908,173.37
Step by Step Solution
- Step 1: Write the proportion equation
1,201,991.10 : 1,658,696.37 = 658,117.02 : x - Step 2: Convert to fraction form
1,201,991.10/1,658,696.37 = 658,117.02/x - Step 3: Cross multiply
1,201,991.10x = 1,658,696.37 × 658,117.02 - Step 4: Simplify right side
1,201,991.10x = 1,091,616,312,109.22 - Step 5: Solve for x
x = 1,091,616,312,109.22/1,201,991.10 - Step 6: Final answer
x = 908,173.37
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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.