Finding the Fourth Proportional to 388,982.84, 583,474.37 and 122,764.19
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Solution
The fourth proportional to 388,982.84, 583,474.37 and 122,764.19 is: 184,146.31
Step by Step Solution
- Step 1: Write the proportion equation
388,982.84 : 583,474.37 = 122,764.19 : x - Step 2: Convert to fraction form
388,982.84/583,474.37 = 122,764.19/x - Step 3: Cross multiply
388,982.84x = 583,474.37 × 122,764.19 - Step 4: Simplify right side
388,982.84x = 71,629,754,887.62 - Step 5: Solve for x
x = 71,629,754,887.62/388,982.84 - Step 6: Final answer
x = 184,146.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.