Finding the Fourth Proportional to 1,287,126.44, 1,776,234.79 and 714,170.71
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Solution
The fourth proportional to 1,287,126.44, 1,776,234.79 and 714,170.71 is: 985,555.75
Step by Step Solution
- Step 1: Write the proportion equation
1,287,126.44 : 1,776,234.79 = 714,170.71 : x - Step 2: Convert to fraction form
1,287,126.44/1,776,234.79 = 714,170.71/x - Step 3: Cross multiply
1,287,126.44x = 1,776,234.79 × 714,170.71 - Step 4: Simplify right side
1,287,126.44x = 1,268,534,861,101.00 - Step 5: Solve for x
x = 1,268,534,861,101.00/1,287,126.44 - Step 6: Final answer
x = 985,555.75
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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.