Finding the Fourth Proportional to 684,413.09, 1,026,764.18 and 257,939.89
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Solution
The fourth proportional to 684,413.09, 1,026,764.18 and 257,939.89 is: 386,964.31
Step by Step Solution
- Step 1: Write the proportion equation
684,413.09 : 1,026,764.18 = 257,939.89 : x - Step 2: Convert to fraction form
684,413.09/1,026,764.18 = 257,939.89/x - Step 3: Cross multiply
684,413.09x = 1,026,764.18 × 257,939.89 - Step 4: Simplify right side
684,413.09x = 264,843,439,645.14 - Step 5: Solve for x
x = 264,843,439,645.14/684,413.09 - Step 6: Final answer
x = 386,964.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.