Finding the Fourth Proportional to 622,604.84, 859,236.52 and 347,005.56
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Solution
The fourth proportional to 622,604.84, 859,236.52 and 347,005.56 is: 478,890.99
Step by Step Solution
- Step 1: Write the proportion equation
622,604.84 : 859,236.52 = 347,005.56 : x - Step 2: Convert to fraction form
622,604.84/859,236.52 = 347,005.56/x - Step 3: Cross multiply
622,604.84x = 859,236.52 × 347,005.56 - Step 4: Simplify right side
622,604.84x = 298,159,849,795.05 - Step 5: Solve for x
x = 298,159,849,795.05/622,604.84 - Step 6: Final answer
x = 478,890.99
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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.