Finding the Fourth Proportional to 981,612.84, 1,472,376.42 and 307,678.76
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Solution
The fourth proportional to 981,612.84, 1,472,376.42 and 307,678.76 is: 461,504.71
Step by Step Solution
- Step 1: Write the proportion equation
981,612.84 : 1,472,376.42 = 307,678.76 : x - Step 2: Convert to fraction form
981,612.84/1,472,376.42 = 307,678.76/x - Step 3: Cross multiply
981,612.84x = 1,472,376.42 × 307,678.76 - Step 4: Simplify right side
981,612.84x = 453,018,951,158.84 - Step 5: Solve for x
x = 453,018,951,158.84/981,612.84 - Step 6: Final answer
x = 461,504.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.