Finding the Fourth Proportional to 647,660.80, 971,491.20 and 584,675.20
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Solution
The fourth proportional to 647,660.80, 971,491.20 and 584,675.20 is: 877,012.80
Step by Step Solution
- Step 1: Write the proportion equation
647,660.80 : 971,491.20 = 584,675.20 : x - Step 2: Convert to fraction form
647,660.80/971,491.20 = 584,675.20/x - Step 3: Cross multiply
647,660.80x = 971,491.20 × 584,675.20 - Step 4: Simplify right side
647,660.80x = 568,006,811,658.24 - Step 5: Solve for x
x = 568,006,811,658.24/647,660.80 - Step 6: Final answer
x = 877,012.80
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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.