Finding the Fourth Proportional to 1,272,672.18, 1,756,242.74 and 699,707.94
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Solution
The fourth proportional to 1,272,672.18, 1,756,242.74 and 699,707.94 is: 965,572.29
Step by Step Solution
- Step 1: Write the proportion equation
1,272,672.18 : 1,756,242.74 = 699,707.94 : x - Step 2: Convert to fraction form
1,272,672.18/1,756,242.74 = 699,707.94/x - Step 3: Cross multiply
1,272,672.18x = 1,756,242.74 × 699,707.94 - Step 4: Simplify right side
1,272,672.18x = 1,228,856,989,745.36 - Step 5: Solve for x
x = 1,228,856,989,745.36/1,272,672.18 - Step 6: Final answer
x = 965,572.29
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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.