Finding the Fourth Proportional to 711,994.68, 982,551.01 and 389,701.96
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Solution
The fourth proportional to 711,994.68, 982,551.01 and 389,701.96 is: 537,787.80
Step by Step Solution
- Step 1: Write the proportion equation
711,994.68 : 982,551.01 = 389,701.96 : x - Step 2: Convert to fraction form
711,994.68/982,551.01 = 389,701.96/x - Step 3: Cross multiply
711,994.68x = 982,551.01 × 389,701.96 - Step 4: Simplify right side
711,994.68x = 382,902,054,460.46 - Step 5: Solve for x
x = 382,902,054,460.46/711,994.68 - Step 6: Final answer
x = 537,787.80
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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.