Finding the Fourth Proportional to 528,027.42, 792,434.60 and 212,486.70
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Solution
The fourth proportional to 528,027.42, 792,434.60 and 212,486.70 is: 318,888.39
Step by Step Solution
- Step 1: Write the proportion equation
528,027.42 : 792,434.60 = 212,486.70 : x - Step 2: Convert to fraction form
528,027.42/792,434.60 = 212,486.70/x - Step 3: Cross multiply
528,027.42x = 792,434.60 × 212,486.70 - Step 4: Simplify right side
528,027.42x = 168,381,813,119.82 - Step 5: Solve for x
x = 168,381,813,119.82/528,027.42 - Step 6: Final answer
x = 318,888.39
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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.