Finding the Fourth Proportional to 878,805.98, 1,212,705.15 and 496,809.98
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Solution
The fourth proportional to 878,805.98, 1,212,705.15 and 496,809.98 is: 685,571.14
Step by Step Solution
- Step 1: Write the proportion equation
878,805.98 : 1,212,705.15 = 496,809.98 : x - Step 2: Convert to fraction form
878,805.98/1,212,705.15 = 496,809.98/x - Step 3: Cross multiply
878,805.98x = 1,212,705.15 × 496,809.98 - Step 4: Simplify right side
878,805.98x = 602,484,021,317.40 - Step 5: Solve for x
x = 602,484,021,317.40/878,805.98 - Step 6: Final answer
x = 685,571.14
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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.