Finding the Fourth Proportional to 388,941.36, 583,412.04 and 122,728.84
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Solution
The fourth proportional to 388,941.36, 583,412.04 and 122,728.84 is: 184,093.26
Step by Step Solution
- Step 1: Write the proportion equation
388,941.36 : 583,412.04 = 122,728.84 : x - Step 2: Convert to fraction form
388,941.36/583,412.04 = 122,728.84/x - Step 3: Cross multiply
388,941.36x = 583,412.04 × 122,728.84 - Step 4: Simplify right side
388,941.36x = 71,601,482,911.23 - Step 5: Solve for x
x = 71,601,482,911.23/388,941.36 - Step 6: Final answer
x = 184,093.26
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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.