Finding the Fourth Proportional to 1,209,801.99, 1,668,834.90 and 756,305.67
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Solution
The fourth proportional to 1,209,801.99, 1,668,834.90 and 756,305.67 is: 1,043,269.32
Step by Step Solution
- Step 1: Write the proportion equation
1,209,801.99 : 1,668,834.90 = 756,305.67 : x - Step 2: Convert to fraction form
1,209,801.99/1,668,834.90 = 756,305.67/x - Step 3: Cross multiply
1,209,801.99x = 1,668,834.90 × 756,305.67 - Step 4: Simplify right side
1,209,801.99x = 1,262,149,297,163.88 - Step 5: Solve for x
x = 1,262,149,297,163.88/1,209,801.99 - Step 6: Final answer
x = 1,043,269.32
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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.