Finding the Fourth Proportional to 1,424,698.26, 1,966,086.84 and 771,331.20
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Solution
The fourth proportional to 1,424,698.26, 1,966,086.84 and 771,331.20 is: 1,064,438.81
Step by Step Solution
- Step 1: Write the proportion equation
1,424,698.26 : 1,966,086.84 = 771,331.20 : x - Step 2: Convert to fraction form
1,424,698.26/1,966,086.84 = 771,331.20/x - Step 3: Cross multiply
1,424,698.26x = 1,966,086.84 × 771,331.20 - Step 4: Simplify right side
1,424,698.26x = 1,516,504,121,601.41 - Step 5: Solve for x
x = 1,516,504,121,601.41/1,424,698.26 - Step 6: Final answer
x = 1,064,438.81
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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.