Finding the Fourth Proportional to 492,778.70, 739,168.05 and 315,631.70
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Solution
The fourth proportional to 492,778.70, 739,168.05 and 315,631.70 is: 473,447.55
Step by Step Solution
- Step 1: Write the proportion equation
492,778.70 : 739,168.05 = 315,631.70 : x - Step 2: Convert to fraction form
492,778.70/739,168.05 = 315,631.70/x - Step 3: Cross multiply
492,778.70x = 739,168.05 × 315,631.70 - Step 4: Simplify right side
492,778.70x = 233,304,868,207.19 - Step 5: Solve for x
x = 233,304,868,207.19/492,778.70 - Step 6: Final answer
x = 473,447.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.