Finding the Fourth Proportional to 631,901.92, 872,045.84 and 345,415.84
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Solution
The fourth proportional to 631,901.92, 872,045.84 and 345,415.84 is: 476,685.44
Step by Step Solution
- Step 1: Write the proportion equation
631,901.92 : 872,045.84 = 345,415.84 : x - Step 2: Convert to fraction form
631,901.92/872,045.84 = 345,415.84/x - Step 3: Cross multiply
631,901.92x = 872,045.84 × 345,415.84 - Step 4: Simplify right side
631,901.92x = 301,218,446,342.11 - Step 5: Solve for x
x = 301,218,446,342.11/631,901.92 - Step 6: Final answer
x = 476,685.44
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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.