Finding the Fourth Proportional to 1,272,876.48, 1,756,449.36 and 756,588.96
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Solution
The fourth proportional to 1,272,876.48, 1,756,449.36 and 756,588.96 is: 1,044,021.33
Step by Step Solution
- Step 1: Write the proportion equation
1,272,876.48 : 1,756,449.36 = 756,588.96 : x - Step 2: Convert to fraction form
1,272,876.48/1,756,449.36 = 756,588.96/x - Step 3: Cross multiply
1,272,876.48x = 1,756,449.36 × 756,588.96 - Step 4: Simplify right side
1,272,876.48x = 1,328,910,194,575.07 - Step 5: Solve for x
x = 1,328,910,194,575.07/1,272,876.48 - Step 6: Final answer
x = 1,044,021.33
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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.