Finding the Fourth Proportional to 1,037,669.76, 1,431,879.36 and 765,886.08
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Solution
The fourth proportional to 1,037,669.76, 1,431,879.36 and 765,886.08 is: 1,056,845.36
Step by Step Solution
- Step 1: Write the proportion equation
1,037,669.76 : 1,431,879.36 = 765,886.08 : x - Step 2: Convert to fraction form
1,037,669.76/1,431,879.36 = 765,886.08/x - Step 3: Cross multiply
1,037,669.76x = 1,431,879.36 × 765,886.08 - Step 4: Simplify right side
1,037,669.76x = 1,096,656,470,063.31 - Step 5: Solve for x
x = 1,096,656,470,063.31/1,037,669.76 - Step 6: Final answer
x = 1,056,845.36
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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.