Finding the Fourth Proportional to 981,704.70, 1,472,557.05 and 509,312.70
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Solution
The fourth proportional to 981,704.70, 1,472,557.05 and 509,312.70 is: 763,969.05
Step by Step Solution
- Step 1: Write the proportion equation
981,704.70 : 1,472,557.05 = 509,312.70 : x - Step 2: Convert to fraction form
981,704.70/1,472,557.05 = 509,312.70/x - Step 3: Cross multiply
981,704.70x = 1,472,557.05 × 509,312.70 - Step 4: Simplify right side
981,704.70x = 749,992,007,039.54 - Step 5: Solve for x
x = 749,992,007,039.54/981,704.70 - Step 6: Final answer
x = 763,969.05
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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.