Finding the Fourth Proportional to 1,301,830.25, 1,796,513.93 and 728,879.99
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Solution
The fourth proportional to 1,301,830.25, 1,796,513.93 and 728,879.99 is: 1,005,847.77
Step by Step Solution
- Step 1: Write the proportion equation
1,301,830.25 : 1,796,513.93 = 728,879.99 : x - Step 2: Convert to fraction form
1,301,830.25/1,796,513.93 = 728,879.99/x - Step 3: Cross multiply
1,301,830.25x = 1,796,513.93 × 728,879.99 - Step 4: Simplify right side
1,301,830.25x = 1,309,443,042,706.29 - Step 5: Solve for x
x = 1,309,443,042,706.29/1,301,830.25 - Step 6: Final answer
x = 1,005,847.77
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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.