Finding the Fourth Proportional to 645,193.49, 967,073.12 and 486,908.69
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Solution
The fourth proportional to 645,193.49, 967,073.12 and 486,908.69 is: 729,821.85
Step by Step Solution
- Step 1: Write the proportion equation
645,193.49 : 967,073.12 = 486,908.69 : x - Step 2: Convert to fraction form
645,193.49/967,073.12 = 486,908.69/x - Step 3: Cross multiply
645,193.49x = 967,073.12 × 486,908.69 - Step 4: Simplify right side
645,193.49x = 470,876,303,558.87 - Step 5: Solve for x
x = 470,876,303,558.87/645,193.49 - Step 6: Final answer
x = 729,821.85
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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.