Finding the Fourth Proportional to 1,112,473.20, 1,669,228.20 and 832,537.20
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Solution
The fourth proportional to 1,112,473.20, 1,669,228.20 and 832,537.20 is: 1,249,193.75
Step by Step Solution
- Step 1: Write the proportion equation
1,112,473.20 : 1,669,228.20 = 832,537.20 : x - Step 2: Convert to fraction form
1,112,473.20/1,669,228.20 = 832,537.20/x - Step 3: Cross multiply
1,112,473.20x = 1,669,228.20 × 832,537.20 - Step 4: Simplify right side
1,112,473.20x = 1,389,694,571,789.04 - Step 5: Solve for x
x = 1,389,694,571,789.04/1,112,473.20 - Step 6: Final answer
x = 1,249,193.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.