Finding the Fourth Proportional to 828,413.26, 1,240,626.94 and 472,347.79
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Solution
The fourth proportional to 828,413.26, 1,240,626.94 and 472,347.79 is: 707,385.33
Step by Step Solution
- Step 1: Write the proportion equation
828,413.26 : 1,240,626.94 = 472,347.79 : x - Step 2: Convert to fraction form
828,413.26/1,240,626.94 = 472,347.79/x - Step 3: Cross multiply
828,413.26x = 1,240,626.94 × 472,347.79 - Step 4: Simplify right side
828,413.26x = 586,007,389,041.03 - Step 5: Solve for x
x = 586,007,389,041.03/828,413.26 - Step 6: Final answer
x = 707,385.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.