Finding the Fourth Proportional to 518,413.75, 777,620.63 and 124,429.75
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Solution
The fourth proportional to 518,413.75, 777,620.63 and 124,429.75 is: 186,644.63
Step by Step Solution
- Step 1: Write the proportion equation
518,413.75 : 777,620.63 = 124,429.75 : x - Step 2: Convert to fraction form
518,413.75/777,620.63 = 124,429.75/x - Step 3: Cross multiply
518,413.75x = 777,620.63 × 124,429.75 - Step 4: Simplify right side
518,413.75x = 96,759,140,585.74 - Step 5: Solve for x
x = 96,759,140,585.74/518,413.75 - Step 6: Final answer
x = 186,644.63
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Similar ratio
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1.5x scale
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.