Finding the Fourth Proportional to 771,321.36, 1,157,419.50 and 416,327.52
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Solution
The fourth proportional to 771,321.36, 1,157,419.50 and 416,327.52 is: 624,727.40
Step by Step Solution
- Step 1: Write the proportion equation
771,321.36 : 1,157,419.50 = 416,327.52 : x - Step 2: Convert to fraction form
771,321.36/1,157,419.50 = 416,327.52/x - Step 3: Cross multiply
771,321.36x = 1,157,419.50 × 416,327.52 - Step 4: Simplify right side
771,321.36x = 481,865,590,034.64 - Step 5: Solve for x
x = 481,865,590,034.64/771,321.36 - Step 6: Final answer
x = 624,727.40
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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.