Finding the Fourth Proportional to 902,456.68, 1,245,391.68 and 494,493.70
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Solution
The fourth proportional to 902,456.68, 1,245,391.68 and 494,493.70 is: 682,402.11
Step by Step Solution
- Step 1: Write the proportion equation
902,456.68 : 1,245,391.68 = 494,493.70 : x - Step 2: Convert to fraction form
902,456.68/1,245,391.68 = 494,493.70/x - Step 3: Cross multiply
902,456.68x = 1,245,391.68 × 494,493.70 - Step 4: Simplify right side
902,456.68x = 615,838,339,792.42 - Step 5: Solve for x
x = 615,838,339,792.42/902,456.68 - Step 6: Final answer
x = 682,402.11
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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.