Finding the Fourth Proportional to 1,043,001.28, 1,439,991.84 and 716,875.84
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Solution
The fourth proportional to 1,043,001.28, 1,439,991.84 and 716,875.84 is: 989,735.47
Step by Step Solution
- Step 1: Write the proportion equation
1,043,001.28 : 1,439,991.84 = 716,875.84 : x - Step 2: Convert to fraction form
1,043,001.28/1,439,991.84 = 716,875.84/x - Step 3: Cross multiply
1,043,001.28x = 1,439,991.84 × 716,875.84 - Step 4: Simplify right side
1,043,001.28x = 1,032,295,359,893.15 - Step 5: Solve for x
x = 1,032,295,359,893.15/1,043,001.28 - Step 6: Final answer
x = 989,735.47
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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.