Finding the Fourth Proportional to 622,812.12, 859,301.58 and 405,340.94
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Solution
The fourth proportional to 622,812.12, 859,301.58 and 405,340.94 is: 559,253.90
Step by Step Solution
- Step 1: Write the proportion equation
622,812.12 : 859,301.58 = 405,340.94 : x - Step 2: Convert to fraction form
622,812.12/859,301.58 = 405,340.94/x - Step 3: Cross multiply
622,812.12x = 859,301.58 × 405,340.94 - Step 4: Simplify right side
622,812.12x = 348,310,105,884.18 - Step 5: Solve for x
x = 348,310,105,884.18/622,812.12 - Step 6: Final answer
x = 559,253.90
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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.