Finding the Fourth Proportional to 647,404.70, 971,107.05 and 247,839.80
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Solution
The fourth proportional to 647,404.70, 971,107.05 and 247,839.80 is: 371,759.70
Step by Step Solution
- Step 1: Write the proportion equation
647,404.70 : 971,107.05 = 247,839.80 : x - Step 2: Convert to fraction form
647,404.70/971,107.05 = 247,839.80/x - Step 3: Cross multiply
647,404.70x = 971,107.05 × 247,839.80 - Step 4: Simplify right side
647,404.70x = 240,678,977,050.59 - Step 5: Solve for x
x = 240,678,977,050.59/647,404.70 - Step 6: Final answer
x = 371,759.70
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1.5x scale
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.