Finding the Fourth Proportional to 678,802.86, 1,018,425.42 and 323,770.68
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Solution
The fourth proportional to 678,802.86, 1,018,425.42 and 323,770.68 is: 485,761.49
Step by Step Solution
- Step 1: Write the proportion equation
678,802.86 : 1,018,425.42 = 323,770.68 : x - Step 2: Convert to fraction form
678,802.86/1,018,425.42 = 323,770.68/x - Step 3: Cross multiply
678,802.86x = 1,018,425.42 × 323,770.68 - Step 4: Simplify right side
678,802.86x = 329,736,290,762.69 - Step 5: Solve for x
x = 329,736,290,762.69/678,802.86 - Step 6: Final answer
x = 485,761.49
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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.