Finding the Fourth Proportional to 1,278,375.24, 1,918,295.52 and 520,076.74
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Solution
The fourth proportional to 1,278,375.24, 1,918,295.52 and 520,076.74 is: 780,413.18
Step by Step Solution
- Step 1: Write the proportion equation
1,278,375.24 : 1,918,295.52 = 520,076.74 : x - Step 2: Convert to fraction form
1,278,375.24/1,918,295.52 = 520,076.74/x - Step 3: Cross multiply
1,278,375.24x = 1,918,295.52 × 520,076.74 - Step 4: Simplify right side
1,278,375.24x = 997,660,880,398.21 - Step 5: Solve for x
x = 997,660,880,398.21/1,278,375.24 - Step 6: Final answer
x = 780,413.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.