Finding the Fourth Proportional to 492,821.74, 739,913.35 and 340,643.94
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Solution
The fourth proportional to 492,821.74, 739,913.35 and 340,643.94 is: 511,436.45
Step by Step Solution
- Step 1: Write the proportion equation
492,821.74 : 739,913.35 = 340,643.94 : x - Step 2: Convert to fraction form
492,821.74/739,913.35 = 340,643.94/x - Step 3: Cross multiply
492,821.74x = 739,913.35 × 340,643.94 - Step 4: Simplify right side
492,821.74x = 252,046,998,802.60 - Step 5: Solve for x
x = 252,046,998,802.60/492,821.74 - Step 6: Final answer
x = 511,436.45
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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.