Finding the Fourth Proportional to 926,413.35, 1,278,159.05 and 518,450.37
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Solution
The fourth proportional to 926,413.35, 1,278,159.05 and 518,450.37 is: 715,298.45
Step by Step Solution
- Step 1: Write the proportion equation
926,413.35 : 1,278,159.05 = 518,450.37 : x - Step 2: Convert to fraction form
926,413.35/1,278,159.05 = 518,450.37/x - Step 3: Cross multiply
926,413.35x = 1,278,159.05 × 518,450.37 - Step 4: Simplify right side
926,413.35x = 662,662,029,799.10 - Step 5: Solve for x
x = 662,662,029,799.10/926,413.35 - Step 6: Final answer
x = 715,298.45
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1.5x scale
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.