Finding the Fourth Proportional to 752,442.84, 1,038,383.82 and 412,942.68
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Solution
The fourth proportional to 752,442.84, 1,038,383.82 and 412,942.68 is: 569,867.87
Step by Step Solution
- Step 1: Write the proportion equation
752,442.84 : 1,038,383.82 = 412,942.68 : x - Step 2: Convert to fraction form
752,442.84/1,038,383.82 = 412,942.68/x - Step 3: Cross multiply
752,442.84x = 1,038,383.82 × 412,942.68 - Step 4: Simplify right side
752,442.84x = 428,792,997,499.44 - Step 5: Solve for x
x = 428,792,997,499.44/752,442.84 - Step 6: Final answer
x = 569,867.87
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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.