Finding the Fourth Proportional to 631,490.24, 871,469.08 and 345,028.08
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Solution
The fourth proportional to 631,490.24, 871,469.08 and 345,028.08 is: 476,145.61
Step by Step Solution
- Step 1: Write the proportion equation
631,490.24 : 871,469.08 = 345,028.08 : x - Step 2: Convert to fraction form
631,490.24/871,469.08 = 345,028.08/x - Step 3: Cross multiply
631,490.24x = 871,469.08 × 345,028.08 - Step 4: Simplify right side
631,490.24x = 300,681,303,451.77 - Step 5: Solve for x
x = 300,681,303,451.77/631,490.24 - Step 6: Final answer
x = 476,145.61
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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.