Finding the Fourth Proportional to 665,534.49, 918,626.00 and 393,696.88
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Solution
The fourth proportional to 665,534.49, 918,626.00 and 393,696.88 is: 543,413.14
Step by Step Solution
- Step 1: Write the proportion equation
665,534.49 : 918,626.00 = 393,696.88 : x - Step 2: Convert to fraction form
665,534.49/918,626.00 = 393,696.88/x - Step 3: Cross multiply
665,534.49x = 918,626.00 × 393,696.88 - Step 4: Simplify right side
665,534.49x = 361,660,185,821.83 - Step 5: Solve for x
x = 361,660,185,821.83/665,534.49 - Step 6: Final answer
x = 543,413.14
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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.