Finding the Fourth Proportional to 4,389,618.80, 6,584,428.20 and 4,221,657.20
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Solution
The fourth proportional to 4,389,618.80, 6,584,428.20 and 4,221,657.20 is: 6,332,485.80
Step by Step Solution
- Step 1: Write the proportion equation
4,389,618.80 : 6,584,428.20 = 4,221,657.20 : x - Step 2: Convert to fraction form
4,389,618.80/6,584,428.20 = 4,221,657.20/x - Step 3: Cross multiply
4,389,618.80x = 6,584,428.20 × 4,221,657.20 - Step 4: Simplify right side
4,389,618.80x = 27,797,198,718,413.04 - Step 5: Solve for x
x = 27,797,198,718,413.04/4,389,618.80 - Step 6: Final answer
x = 6,332,485.80
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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.