Finding the Fourth Proportional to 771,313.51, 1,157,716.58 and 372,235.21
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Solution
The fourth proportional to 771,313.51, 1,157,716.58 and 372,235.21 is: 558,712.99
Step by Step Solution
- Step 1: Write the proportion equation
771,313.51 : 1,157,716.58 = 372,235.21 : x - Step 2: Convert to fraction form
771,313.51/1,157,716.58 = 372,235.21/x - Step 3: Cross multiply
771,313.51x = 1,157,716.58 × 372,235.21 - Step 4: Simplify right side
771,313.51x = 430,942,874,276.78 - Step 5: Solve for x
x = 430,942,874,276.78/771,313.51 - Step 6: Final answer
x = 558,712.99
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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.