Finding the Fourth Proportional to 981,614.21, 1,472,378.48 and 307,680.15
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Solution
The fourth proportional to 981,614.21, 1,472,378.48 and 307,680.15 is: 461,506.80
Step by Step Solution
- Step 1: Write the proportion equation
981,614.21 : 1,472,378.48 = 307,680.15 : x - Step 2: Convert to fraction form
981,614.21/1,472,378.48 = 307,680.15/x - Step 3: Cross multiply
981,614.21x = 1,472,378.48 × 307,680.15 - Step 4: Simplify right side
981,614.21x = 453,021,630,044.77 - Step 5: Solve for x
x = 453,021,630,044.77/981,614.21 - Step 6: Final answer
x = 461,506.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.