Finding the Fourth Proportional to 428,617.68, 642,881.34 and 175,924.80
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Solution
The fourth proportional to 428,617.68, 642,881.34 and 175,924.80 is: 263,868.66
Step by Step Solution
- Step 1: Write the proportion equation
428,617.68 : 642,881.34 = 175,924.80 : x - Step 2: Convert to fraction form
428,617.68/642,881.34 = 175,924.80/x - Step 3: Cross multiply
428,617.68x = 642,881.34 × 175,924.80 - Step 4: Simplify right side
428,617.68x = 113,098,771,163.23 - Step 5: Solve for x
x = 113,098,771,163.23/428,617.68 - Step 6: Final answer
x = 263,868.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.