Finding the Fourth Proportional to 981,343.62, 1,354,261.64 and 545,767.02
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Solution
The fourth proportional to 981,343.62, 1,354,261.64 and 545,767.02 is: 753,162.62
Step by Step Solution
- Step 1: Write the proportion equation
981,343.62 : 1,354,261.64 = 545,767.02 : x - Step 2: Convert to fraction form
981,343.62/1,354,261.64 = 545,767.02/x - Step 3: Cross multiply
981,343.62x = 1,354,261.64 × 545,767.02 - Step 4: Simplify right side
981,343.62x = 739,111,336,834.28 - Step 5: Solve for x
x = 739,111,336,834.28/981,343.62 - Step 6: Final answer
x = 753,162.62
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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.