Finding the Fourth Proportional to 656,863.63, 906,471.41 and 355,057.63
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Solution
The fourth proportional to 656,863.63, 906,471.41 and 355,057.63 is: 489,979.31
Step by Step Solution
- Step 1: Write the proportion equation
656,863.63 : 906,471.41 = 355,057.63 : x - Step 2: Convert to fraction form
656,863.63/906,471.41 = 355,057.63/x - Step 3: Cross multiply
656,863.63x = 906,471.41 × 355,057.63 - Step 4: Simplify right side
656,863.63x = 321,849,586,455.89 - Step 5: Solve for x
x = 321,849,586,455.89/656,863.63 - Step 6: Final answer
x = 489,979.31
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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.