Finding the Fourth Proportional to 1,259,423.48, 1,738,021.92 and 686,462.60
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Solution
The fourth proportional to 1,259,423.48, 1,738,021.92 and 686,462.60 is: 947,327.94
Step by Step Solution
- Step 1: Write the proportion equation
1,259,423.48 : 1,738,021.92 = 686,462.60 : x - Step 2: Convert to fraction form
1,259,423.48/1,738,021.92 = 686,462.60/x - Step 3: Cross multiply
1,259,423.48x = 1,738,021.92 × 686,462.60 - Step 4: Simplify right side
1,259,423.48x = 1,193,087,046,060.19 - Step 5: Solve for x
x = 1,193,087,046,060.19/1,259,423.48 - Step 6: Final answer
x = 947,327.94
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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.