Finding the Fourth Proportional to 986,770.53, 1,361,778.62 and 557,127.09
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Solution
The fourth proportional to 986,770.53, 1,361,778.62 and 557,127.09 is: 768,855.31
Step by Step Solution
- Step 1: Write the proportion equation
986,770.53 : 1,361,778.62 = 557,127.09 : x - Step 2: Convert to fraction form
986,770.53/1,361,778.62 = 557,127.09/x - Step 3: Cross multiply
986,770.53x = 1,361,778.62 × 557,127.09 - Step 4: Simplify right side
986,770.53x = 758,683,756,999.18 - Step 5: Solve for x
x = 758,683,756,999.18/986,770.53 - Step 6: Final answer
x = 768,855.31
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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.