Finding the Fourth Proportional to 586,355.09, 809,171.58 and 318,083.09
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Solution
The fourth proportional to 586,355.09, 809,171.58 and 318,083.09 is: 438,955.51
Step by Step Solution
- Step 1: Write the proportion equation
586,355.09 : 809,171.58 = 318,083.09 : x - Step 2: Convert to fraction form
586,355.09/809,171.58 = 318,083.09/x - Step 3: Cross multiply
586,355.09x = 809,171.58 × 318,083.09 - Step 4: Simplify right side
586,355.09x = 257,383,796,506.58 - Step 5: Solve for x
x = 257,383,796,506.58/586,355.09 - Step 6: Final answer
x = 438,955.51
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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.