Finding the Fourth Proportional to 902,460.68, 1,245,397.20 and 494,497.72
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Solution
The fourth proportional to 902,460.68, 1,245,397.20 and 494,497.72 is: 682,407.65
Step by Step Solution
- Step 1: Write the proportion equation
902,460.68 : 1,245,397.20 = 494,497.72 : x - Step 2: Convert to fraction form
902,460.68/1,245,397.20 = 494,497.72/x - Step 3: Cross multiply
902,460.68x = 1,245,397.20 × 494,497.72 - Step 4: Simplify right side
902,460.68x = 615,846,075,894.38 - Step 5: Solve for x
x = 615,846,075,894.38/902,460.68 - Step 6: Final answer
x = 682,407.65
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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.