Finding the Fourth Proportional to 590,823.12, 815,338.44 and 322,556.88
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Solution
The fourth proportional to 590,823.12, 815,338.44 and 322,556.88 is: 445,129.88
Step by Step Solution
- Step 1: Write the proportion equation
590,823.12 : 815,338.44 = 322,556.88 : x - Step 2: Convert to fraction form
590,823.12/815,338.44 = 322,556.88/x - Step 3: Cross multiply
590,823.12x = 815,338.44 × 322,556.88 - Step 4: Simplify right side
590,823.12x = 262,993,023,350.47 - Step 5: Solve for x
x = 262,993,023,350.47/590,823.12 - Step 6: Final answer
x = 445,129.88
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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.