Finding the Fourth Proportional to 1,297,676.40, 1,777,786.97 and 1,249,159.12
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Solution
The fourth proportional to 1,297,676.40, 1,777,786.97 and 1,249,159.12 is: 1,711,319.41
Step by Step Solution
- Step 1: Write the proportion equation
1,297,676.40 : 1,777,786.97 = 1,249,159.12 : x - Step 2: Convert to fraction form
1,297,676.40/1,777,786.97 = 1,249,159.12/x - Step 3: Cross multiply
1,297,676.40x = 1,777,786.97 × 1,249,159.12 - Step 4: Simplify right side
1,297,676.40x = 2,220,738,806,992.67 - Step 5: Solve for x
x = 2,220,738,806,992.67/1,297,676.40 - Step 6: Final answer
x = 1,711,319.41
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.