Finding the Fourth Proportional to 631,449.99, 871,441.20 and 359,541.63
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Solution
The fourth proportional to 631,449.99, 871,441.20 and 359,541.63 is: 496,190.35
Step by Step Solution
- Step 1: Write the proportion equation
631,449.99 : 871,441.20 = 359,541.63 : x - Step 2: Convert to fraction form
631,449.99/871,441.20 = 359,541.63/x - Step 3: Cross multiply
631,449.99x = 871,441.20 × 359,541.63 - Step 4: Simplify right side
631,449.99x = 313,319,389,497.16 - Step 5: Solve for x
x = 313,319,389,497.16/631,449.99 - Step 6: Final answer
x = 496,190.35
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1.5x scale
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.