Finding the Fourth Proportional to 1,288,637.41, 1,778,106.09 and 744,823.93
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Solution
The fourth proportional to 1,288,637.41, 1,778,106.09 and 744,823.93 is: 1,027,733.60
Step by Step Solution
- Step 1: Write the proportion equation
1,288,637.41 : 1,778,106.09 = 744,823.93 : x - Step 2: Convert to fraction form
1,288,637.41/1,778,106.09 = 744,823.93/x - Step 3: Cross multiply
1,288,637.41x = 1,778,106.09 × 744,823.93 - Step 4: Simplify right side
1,288,637.41x = 1,324,375,965,910.73 - Step 5: Solve for x
x = 1,324,375,965,910.73/1,288,637.41 - Step 6: Final answer
x = 1,027,733.60
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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.