Finding the Fourth Proportional to 1,288,727.92, 1,778,340.28 and 744,898.96
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Solution
The fourth proportional to 1,288,727.92, 1,778,340.28 and 744,898.96 is: 1,027,900.31
Step by Step Solution
- Step 1: Write the proportion equation
1,288,727.92 : 1,778,340.28 = 744,898.96 : x - Step 2: Convert to fraction form
1,288,727.92/1,778,340.28 = 744,898.96/x - Step 3: Cross multiply
1,288,727.92x = 1,778,340.28 × 744,898.96 - Step 4: Simplify right side
1,288,727.92x = 1,324,683,825,098.11 - Step 5: Solve for x
x = 1,324,683,825,098.11/1,288,727.92 - Step 6: Final answer
x = 1,027,900.31
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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.