Finding the Fourth Proportional to 1,081,866.44, 1,485,157.68 and 928,638.61
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Solution
The fourth proportional to 1,081,866.44, 1,485,157.68 and 928,638.61 is: 1,274,810.57
Step by Step Solution
- Step 1: Write the proportion equation
1,081,866.44 : 1,485,157.68 = 928,638.61 : x - Step 2: Convert to fraction form
1,081,866.44/1,485,157.68 = 928,638.61/x - Step 3: Cross multiply
1,081,866.44x = 1,485,157.68 × 928,638.61 - Step 4: Simplify right side
1,081,866.44x = 1,379,174,771,476.96 - Step 5: Solve for x
x = 1,379,174,771,476.96/1,081,866.44 - Step 6: Final answer
x = 1,274,810.57
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.