Finding the Fourth Proportional to 786,597.82, 1,085,537.36 and 442,449.74
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Solution
The fourth proportional to 786,597.82, 1,085,537.36 and 442,449.74 is: 610,598.85
Step by Step Solution
- Step 1: Write the proportion equation
786,597.82 : 1,085,537.36 = 442,449.74 : x - Step 2: Convert to fraction form
786,597.82/1,085,537.36 = 442,449.74/x - Step 3: Cross multiply
786,597.82x = 1,085,537.36 × 442,449.74 - Step 4: Simplify right side
786,597.82x = 480,295,726,512.25 - Step 5: Solve for x
x = 480,295,726,512.25/786,597.82 - Step 6: Final answer
x = 610,598.85
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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.