Finding the Fourth Proportional to 780,134.20, 1,170,201.30 and 514,413.70
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Solution
The fourth proportional to 780,134.20, 1,170,201.30 and 514,413.70 is: 771,620.55
Step by Step Solution
- Step 1: Write the proportion equation
780,134.20 : 1,170,201.30 = 514,413.70 : x - Step 2: Convert to fraction form
780,134.20/1,170,201.30 = 514,413.70/x - Step 3: Cross multiply
780,134.20x = 1,170,201.30 × 514,413.70 - Step 4: Simplify right side
780,134.20x = 601,967,580,477.81 - Step 5: Solve for x
x = 601,967,580,477.81/780,134.20 - Step 6: Final answer
x = 771,620.55
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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.