Finding the Fourth Proportional to 631,445.49, 871,434.99 and 359,537.13
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Solution
The fourth proportional to 631,445.49, 871,434.99 and 359,537.13 is: 496,184.14
Step by Step Solution
- Step 1: Write the proportion equation
631,445.49 : 871,434.99 = 359,537.13 : x - Step 2: Convert to fraction form
631,445.49/871,434.99 = 359,537.13/x - Step 3: Cross multiply
631,445.49x = 871,434.99 × 359,537.13 - Step 4: Simplify right side
631,445.49x = 313,313,235,286.18 - Step 5: Solve for x
x = 313,313,235,286.18/631,445.49 - Step 6: Final answer
x = 496,184.14
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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.