Finding the Fourth Proportional to 771,812.02, 1,158,778.47 and 392,987.26
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Solution
The fourth proportional to 771,812.02, 1,158,778.47 and 392,987.26 is: 590,020.84
Step by Step Solution
- Step 1: Write the proportion equation
771,812.02 : 1,158,778.47 = 392,987.26 : x - Step 2: Convert to fraction form
771,812.02/1,158,778.47 = 392,987.26/x - Step 3: Cross multiply
771,812.02x = 1,158,778.47 × 392,987.26 - Step 4: Simplify right side
771,812.02x = 455,385,175,872.29 - Step 5: Solve for x
x = 455,385,175,872.29/771,812.02 - Step 6: Final answer
x = 590,020.84
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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.