Finding the Fourth Proportional to 631,433.36, 871,438.08 and 344,996.48
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Solution
The fourth proportional to 631,433.36, 871,438.08 and 344,996.48 is: 476,127.95
Step by Step Solution
- Step 1: Write the proportion equation
631,433.36 : 871,438.08 = 344,996.48 : x - Step 2: Convert to fraction form
631,433.36/871,438.08 = 344,996.48/x - Step 3: Cross multiply
631,433.36x = 871,438.08 × 344,996.48 - Step 4: Simplify right side
631,433.36x = 300,643,070,137.96 - Step 5: Solve for x
x = 300,643,070,137.96/631,433.36 - Step 6: Final answer
x = 476,127.95
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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.