Finding the Fourth Proportional to 853,795.08, 1,178,136.90 and 471,799.08
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Solution
The fourth proportional to 853,795.08, 1,178,136.90 and 471,799.08 is: 651,027.30
Step by Step Solution
- Step 1: Write the proportion equation
853,795.08 : 1,178,136.90 = 471,799.08 : x - Step 2: Convert to fraction form
853,795.08/1,178,136.90 = 471,799.08/x - Step 3: Cross multiply
853,795.08x = 1,178,136.90 × 471,799.08 - Step 4: Simplify right side
853,795.08x = 555,843,905,534.05 - Step 5: Solve for x
x = 555,843,905,534.05/853,795.08 - Step 6: Final answer
x = 651,027.30
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1.5x scale
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.