Finding the Fourth Proportional to 489,205.80, 733,808.70 and 371,107.80
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Solution
The fourth proportional to 489,205.80, 733,808.70 and 371,107.80 is: 556,661.70
Step by Step Solution
- Step 1: Write the proportion equation
489,205.80 : 733,808.70 = 371,107.80 : x - Step 2: Convert to fraction form
489,205.80/733,808.70 = 371,107.80/x - Step 3: Cross multiply
489,205.80x = 733,808.70 × 371,107.80 - Step 4: Simplify right side
489,205.80x = 272,322,132,277.86 - Step 5: Solve for x
x = 272,322,132,277.86/489,205.80 - Step 6: Final answer
x = 556,661.70
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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.