Finding the Fourth Proportional to 499,188.10, 689,447.81 and 335,560.49
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Solution
The fourth proportional to 499,188.10, 689,447.81 and 335,560.49 is: 463,455.45
Step by Step Solution
- Step 1: Write the proportion equation
499,188.10 : 689,447.81 = 335,560.49 : x - Step 2: Convert to fraction form
499,188.10/689,447.81 = 335,560.49/x - Step 3: Cross multiply
499,188.10x = 689,447.81 × 335,560.49 - Step 4: Simplify right side
499,188.10x = 231,351,444,953.03 - Step 5: Solve for x
x = 231,351,444,953.03/499,188.10 - Step 6: Final answer
x = 463,455.45
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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.