Finding the Fourth Proportional to 981,207.54, 1,354,178.58 and 545,668.28
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Solution
The fourth proportional to 981,207.54, 1,354,178.58 and 545,668.28 is: 753,084.61
Step by Step Solution
- Step 1: Write the proportion equation
981,207.54 : 1,354,178.58 = 545,668.28 : x - Step 2: Convert to fraction form
981,207.54/1,354,178.58 = 545,668.28/x - Step 3: Cross multiply
981,207.54x = 1,354,178.58 × 545,668.28 - Step 4: Simplify right side
981,207.54x = 738,932,296,561.44 - Step 5: Solve for x
x = 738,932,296,561.44/981,207.54 - Step 6: Final answer
x = 753,084.61
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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.