Finding the Fourth Proportional to 981,435.62, 1,472,153.31 and 316,587.62
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Solution
The fourth proportional to 981,435.62, 1,472,153.31 and 316,587.62 is: 474,881.39
Step by Step Solution
- Step 1: Write the proportion equation
981,435.62 : 1,472,153.31 = 316,587.62 : x - Step 2: Convert to fraction form
981,435.62/1,472,153.31 = 316,587.62/x - Step 3: Cross multiply
981,435.62x = 1,472,153.31 × 316,587.62 - Step 4: Simplify right side
981,435.62x = 466,065,512,688.02 - Step 5: Solve for x
x = 466,065,512,688.02/981,435.62 - Step 6: Final answer
x = 474,881.39
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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.