Finding the Fourth Proportional to 786,362.55, 1,177,651.98 and 448,378.54
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Solution
The fourth proportional to 786,362.55, 1,177,651.98 and 448,378.54 is: 671,489.09
Step by Step Solution
- Step 1: Write the proportion equation
786,362.55 : 1,177,651.98 = 448,378.54 : x - Step 2: Convert to fraction form
786,362.55/1,177,651.98 = 448,378.54/x - Step 3: Cross multiply
786,362.55x = 1,177,651.98 × 448,378.54 - Step 4: Simplify right side
786,362.55x = 528,033,872,476.38 - Step 5: Solve for x
x = 528,033,872,476.38/786,362.55 - Step 6: Final answer
x = 671,489.09
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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.