Finding the Fourth Proportional to 711,807.18, 982,293.99 and 389,517.35
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Solution
The fourth proportional to 711,807.18, 982,293.99 and 389,517.35 is: 537,533.99
Step by Step Solution
- Step 1: Write the proportion equation
711,807.18 : 982,293.99 = 389,517.35 : x - Step 2: Convert to fraction form
711,807.18/982,293.99 = 389,517.35/x - Step 3: Cross multiply
711,807.18x = 982,293.99 × 389,517.35 - Step 4: Simplify right side
711,807.18x = 382,620,551,905.73 - Step 5: Solve for x
x = 382,620,551,905.73/711,807.18 - Step 6: Final answer
x = 537,533.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.