Finding the Fourth Proportional to 1,292,431.08, 1,783,794.06 and 748,566.75
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Solution
The fourth proportional to 1,292,431.08, 1,783,794.06 and 748,566.75 is: 1,033,160.64
Step by Step Solution
- Step 1: Write the proportion equation
1,292,431.08 : 1,783,794.06 = 748,566.75 : x - Step 2: Convert to fraction form
1,292,431.08/1,783,794.06 = 748,566.75/x - Step 3: Cross multiply
1,292,431.08x = 1,783,794.06 × 748,566.75 - Step 4: Simplify right side
1,292,431.08x = 1,335,288,922,163.51 - Step 5: Solve for x
x = 1,335,288,922,163.51/1,292,431.08 - Step 6: Final answer
x = 1,033,160.64
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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.