Finding the Fourth Proportional to 548,639.80, 822,959.70 and 495,495.70
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Solution
The fourth proportional to 548,639.80, 822,959.70 and 495,495.70 is: 743,243.55
Step by Step Solution
- Step 1: Write the proportion equation
548,639.80 : 822,959.70 = 495,495.70 : x - Step 2: Convert to fraction form
548,639.80/822,959.70 = 495,495.70/x - Step 3: Cross multiply
548,639.80x = 822,959.70 × 495,495.70 - Step 4: Simplify right side
548,639.80x = 407,772,992,623.29 - Step 5: Solve for x
x = 407,772,992,623.29/548,639.80 - Step 6: Final answer
x = 743,243.55
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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.