Finding the Fourth Proportional to 853,795.96, 1,178,138.08 and 471,799.96
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Solution
The fourth proportional to 853,795.96, 1,178,138.08 and 471,799.96 is: 651,028.50
Step by Step Solution
- Step 1: Write the proportion equation
853,795.96 : 1,178,138.08 = 471,799.96 : x - Step 2: Convert to fraction form
853,795.96/1,178,138.08 = 471,799.96/x - Step 3: Cross multiply
853,795.96x = 1,178,138.08 × 471,799.96 - Step 4: Simplify right side
853,795.96x = 555,845,499,018.48 - Step 5: Solve for x
x = 555,845,499,018.48/853,795.96 - Step 6: Final answer
x = 651,028.50
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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.