Finding the Fourth Proportional to 711,495.93, 981,851.58 and 389,203.23
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Solution
The fourth proportional to 711,495.93, 981,851.58 and 389,203.23 is: 537,093.45
Step by Step Solution
- Step 1: Write the proportion equation
711,495.93 : 981,851.58 = 389,203.23 : x - Step 2: Convert to fraction form
711,495.93/981,851.58 = 389,203.23/x - Step 3: Cross multiply
711,495.93x = 981,851.58 × 389,203.23 - Step 4: Simplify right side
711,495.93x = 382,139,806,316.60 - Step 5: Solve for x
x = 382,139,806,316.60/711,495.93 - Step 6: Final answer
x = 537,093.45
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1.5x scale
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.