Finding the Fourth Proportional to 420,703.49, 580,568.50 and 229,715.53
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Solution
The fourth proportional to 420,703.49, 580,568.50 and 229,715.53 is: 317,006.17
Step by Step Solution
- Step 1: Write the proportion equation
420,703.49 : 580,568.50 = 229,715.53 : x - Step 2: Convert to fraction form
420,703.49/580,568.50 = 229,715.53/x - Step 3: Cross multiply
420,703.49x = 580,568.50 × 229,715.53 - Step 4: Simplify right side
420,703.49x = 133,365,600,678.81 - Step 5: Solve for x
x = 133,365,600,678.81/420,703.49 - Step 6: Final answer
x = 317,006.17
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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.