Finding the Fourth Proportional to 527,195.84, 727,528.94 and 285,478.39
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Solution
The fourth proportional to 527,195.84, 727,528.94 and 285,478.39 is: 393,959.46
Step by Step Solution
- Step 1: Write the proportion equation
527,195.84 : 727,528.94 = 285,478.39 : x - Step 2: Convert to fraction form
527,195.84/727,528.94 = 285,478.39/x - Step 3: Cross multiply
527,195.84x = 727,528.94 × 285,478.39 - Step 4: Simplify right side
527,195.84x = 207,693,789,042.22 - Step 5: Solve for x
x = 207,693,789,042.22/527,195.84 - Step 6: Final answer
x = 393,959.46
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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.