Finding the Fourth Proportional to 1,245,691.26, 1,719,053.97 and 672,731.49
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Solution
The fourth proportional to 1,245,691.26, 1,719,053.97 and 672,731.49 is: 928,369.47
Step by Step Solution
- Step 1: Write the proportion equation
1,245,691.26 : 1,719,053.97 = 672,731.49 : x - Step 2: Convert to fraction form
1,245,691.26/1,719,053.97 = 672,731.49/x - Step 3: Cross multiply
1,245,691.26x = 1,719,053.97 × 672,731.49 - Step 4: Simplify right side
1,245,691.26x = 1,156,461,738,628.52 - Step 5: Solve for x
x = 1,156,461,738,628.52/1,245,691.26 - Step 6: Final answer
x = 928,369.47
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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.