Finding the Fourth Proportional to 548,207.71, 756,488.23 and 318,748.70
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Solution
The fourth proportional to 548,207.71, 756,488.23 and 318,748.70 is: 439,850.88
Step by Step Solution
- Step 1: Write the proportion equation
548,207.71 : 756,488.23 = 318,748.70 : x - Step 2: Convert to fraction form
548,207.71/756,488.23 = 318,748.70/x - Step 3: Cross multiply
548,207.71x = 756,488.23 × 318,748.70 - Step 4: Simplify right side
548,207.71x = 241,129,640,972.15 - Step 5: Solve for x
x = 241,129,640,972.15/548,207.71 - Step 6: Final answer
x = 439,850.88
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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.