Finding the Fourth Proportional to 744,817.20, 1,115,913.60 and 610,972.80
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Solution
The fourth proportional to 744,817.20, 1,115,913.60 and 610,972.80 is: 915,382.80
Step by Step Solution
- Step 1: Write the proportion equation
744,817.20 : 1,115,913.60 = 610,972.80 : x - Step 2: Convert to fraction form
744,817.20/1,115,913.60 = 610,972.80/x - Step 3: Cross multiply
744,817.20x = 1,115,913.60 × 610,972.80 - Step 4: Simplify right side
744,817.20x = 681,792,856,750.08 - Step 5: Solve for x
x = 681,792,856,750.08/744,817.20 - Step 6: Final answer
x = 915,382.80
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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.