Finding the Fourth Proportional to 1,043,491.20, 1,439,348.76 and 716,646.48
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Solution
The fourth proportional to 1,043,491.20, 1,439,348.76 and 716,646.48 is: 988,512.62
Step by Step Solution
- Step 1: Write the proportion equation
1,043,491.20 : 1,439,348.76 = 716,646.48 : x - Step 2: Convert to fraction form
1,043,491.20/1,439,348.76 = 716,646.48/x - Step 3: Cross multiply
1,043,491.20x = 1,439,348.76 × 716,646.48 - Step 4: Simplify right side
1,043,491.20x = 1,031,504,222,346.36 - Step 5: Solve for x
x = 1,031,504,222,346.36/1,043,491.20 - Step 6: Final answer
x = 988,512.62
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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.