Finding the Fourth Proportional to 829,205.81, 1,243,804.58 and 323,818.14
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Solution
The fourth proportional to 829,205.81, 1,243,804.58 and 323,818.14 is: 485,725.59
Step by Step Solution
- Step 1: Write the proportion equation
829,205.81 : 1,243,804.58 = 323,818.14 : x - Step 2: Convert to fraction form
829,205.81/1,243,804.58 = 323,818.14/x - Step 3: Cross multiply
829,205.81x = 1,243,804.58 × 323,818.14 - Step 4: Simplify right side
829,205.81x = 402,766,486,428.63 - Step 5: Solve for x
x = 402,766,486,428.63/829,205.81 - Step 6: Final answer
x = 485,725.59
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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.