Finding the Fourth Proportional to 857,413.06, 1,183,246.29 and 470,203.95
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Solution
The fourth proportional to 857,413.06, 1,183,246.29 and 470,203.95 is: 648,890.37
Step by Step Solution
- Step 1: Write the proportion equation
857,413.06 : 1,183,246.29 = 470,203.95 : x - Step 2: Convert to fraction form
857,413.06/1,183,246.29 = 470,203.95/x - Step 3: Cross multiply
857,413.06x = 1,183,246.29 × 470,203.95 - Step 4: Simplify right side
857,413.06x = 556,367,079,380.85 - Step 5: Solve for x
x = 556,367,079,380.85/857,413.06 - Step 6: Final answer
x = 648,890.37
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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.