Finding the Fourth Proportional to 420,916.93, 580,878.09 and 229,942.62
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Solution
The fourth proportional to 420,916.93, 580,878.09 and 229,942.62 is: 317,327.76
Step by Step Solution
- Step 1: Write the proportion equation
420,916.93 : 580,878.09 = 229,942.62 : x - Step 2: Convert to fraction form
420,916.93/580,878.09 = 229,942.62/x - Step 3: Cross multiply
420,916.93x = 580,878.09 × 229,942.62 - Step 4: Simplify right side
420,916.93x = 133,568,627,010.81 - Step 5: Solve for x
x = 133,568,627,010.81/420,916.93 - Step 6: Final answer
x = 317,327.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.