Finding the Fourth Proportional to 964,431.75, 1,330,991.05 and 534,795.60
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Solution
The fourth proportional to 964,431.75, 1,330,991.05 and 534,795.60 is: 738,059.65
Step by Step Solution
- Step 1: Write the proportion equation
964,431.75 : 1,330,991.05 = 534,795.60 : x - Step 2: Convert to fraction form
964,431.75/1,330,991.05 = 534,795.60/x - Step 3: Cross multiply
964,431.75x = 1,330,991.05 × 534,795.60 - Step 4: Simplify right side
964,431.75x = 711,808,157,179.38 - Step 5: Solve for x
x = 711,808,157,179.38/964,431.75 - Step 6: Final answer
x = 738,059.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.