Finding the Fourth Proportional to 756,970.93, 1,135,431.69 and 307,558.90
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Solution
The fourth proportional to 756,970.93, 1,135,431.69 and 307,558.90 is: 461,328.31
Step by Step Solution
- Step 1: Write the proportion equation
756,970.93 : 1,135,431.69 = 307,558.90 : x - Step 2: Convert to fraction form
756,970.93/1,135,431.69 = 307,558.90/x - Step 3: Cross multiply
756,970.93x = 1,135,431.69 × 307,558.90 - Step 4: Simplify right side
756,970.93x = 349,212,121,601.54 - Step 5: Solve for x
x = 349,212,121,601.54/756,970.93 - Step 6: Final answer
x = 461,328.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.