Finding the Fourth Proportional to 902,465.69, 1,245,244.79 and 515,104.25
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Solution
The fourth proportional to 902,465.69, 1,245,244.79 and 515,104.25 is: 710,753.76
Step by Step Solution
- Step 1: Write the proportion equation
902,465.69 : 1,245,244.79 = 515,104.25 : x - Step 2: Convert to fraction form
902,465.69/1,245,244.79 = 515,104.25/x - Step 3: Cross multiply
902,465.69x = 1,245,244.79 × 515,104.25 - Step 4: Simplify right side
902,465.69x = 641,430,874,817.61 - Step 5: Solve for x
x = 641,430,874,817.61/902,465.69 - Step 6: Final answer
x = 710,753.76
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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.