Finding the Fourth Proportional to 987,960.87, 1,363,368.24 and 558,231.84
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Solution
The fourth proportional to 987,960.87, 1,363,368.24 and 558,231.84 is: 770,349.90
Step by Step Solution
- Step 1: Write the proportion equation
987,960.87 : 1,363,368.24 = 558,231.84 : x - Step 2: Convert to fraction form
987,960.87/1,363,368.24 = 558,231.84/x - Step 3: Cross multiply
987,960.87x = 1,363,368.24 × 558,231.84 - Step 4: Simplify right side
987,960.87x = 761,075,561,212.76 - Step 5: Solve for x
x = 761,075,561,212.76/987,960.87 - Step 6: Final answer
x = 770,349.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.