Finding the Fourth Proportional to 676,771.20, 1,015,219.44 and 221,365.02
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Solution
The fourth proportional to 676,771.20, 1,015,219.44 and 221,365.02 is: 332,068.02
Step by Step Solution
- Step 1: Write the proportion equation
676,771.20 : 1,015,219.44 = 221,365.02 : x - Step 2: Convert to fraction form
676,771.20/1,015,219.44 = 221,365.02/x - Step 3: Cross multiply
676,771.20x = 1,015,219.44 × 221,365.02 - Step 4: Simplify right side
676,771.20x = 224,734,071,639.99 - Step 5: Solve for x
x = 224,734,071,639.99/676,771.20 - Step 6: Final answer
x = 332,068.02
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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.