Finding the Fourth Proportional to 1,298,413.24, 1,791,902.99 and 717,623.87
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Solution
The fourth proportional to 1,298,413.24, 1,791,902.99 and 717,623.87 is: 990,372.19
Step by Step Solution
- Step 1: Write the proportion equation
1,298,413.24 : 1,791,902.99 = 717,623.87 : x - Step 2: Convert to fraction form
1,298,413.24/1,791,902.99 = 717,623.87/x - Step 3: Cross multiply
1,298,413.24x = 1,791,902.99 × 717,623.87 - Step 4: Simplify right side
1,298,413.24x = 1,285,912,358,348.37 - Step 5: Solve for x
x = 1,285,912,358,348.37/1,298,413.24 - Step 6: Final answer
x = 990,372.19
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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.