Finding the Fourth Proportional to 631,656.99, 871,728.08 and 356,082.84
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Solution
The fourth proportional to 631,656.99, 871,728.08 and 356,082.84 is: 491,417.67
Step by Step Solution
- Step 1: Write the proportion equation
631,656.99 : 871,728.08 = 356,082.84 : x - Step 2: Convert to fraction form
631,656.99/871,728.08 = 356,082.84/x - Step 3: Cross multiply
631,656.99x = 871,728.08 × 356,082.84 - Step 4: Simplify right side
631,656.99x = 310,407,408,653.73 - Step 5: Solve for x
x = 310,407,408,653.73/631,656.99 - Step 6: Final answer
x = 491,417.67
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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.