Finding the Fourth Proportional to 958,072.14, 1,322,121.15 and 528,391.98
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Solution
The fourth proportional to 958,072.14, 1,322,121.15 and 528,391.98 is: 729,170.78
Step by Step Solution
- Step 1: Write the proportion equation
958,072.14 : 1,322,121.15 = 528,391.98 : x - Step 2: Convert to fraction form
958,072.14/1,322,121.15 = 528,391.98/x - Step 3: Cross multiply
958,072.14x = 1,322,121.15 × 528,391.98 - Step 4: Simplify right side
958,072.14x = 698,598,212,248.38 - Step 5: Solve for x
x = 698,598,212,248.38/958,072.14 - Step 6: Final answer
x = 729,170.78
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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.