Finding the Fourth Proportional to 791,079.75, 1,186,141.20 and 310,732.53
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Solution
The fourth proportional to 791,079.75, 1,186,141.20 and 310,732.53 is: 465,910.87
Step by Step Solution
- Step 1: Write the proportion equation
791,079.75 : 1,186,141.20 = 310,732.53 : x - Step 2: Convert to fraction form
791,079.75/1,186,141.20 = 310,732.53/x - Step 3: Cross multiply
791,079.75x = 1,186,141.20 × 310,732.53 - Step 4: Simplify right side
791,079.75x = 368,572,656,013.24 - Step 5: Solve for x
x = 368,572,656,013.24/791,079.75 - Step 6: Final answer
x = 465,910.87
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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.