Finding the Fourth Proportional to 1,331,958.44, 1,838,122.80 and 758,986.40
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Solution
The fourth proportional to 1,331,958.44, 1,838,122.80 and 758,986.40 is: 1,047,412.72
Step by Step Solution
- Step 1: Write the proportion equation
1,331,958.44 : 1,838,122.80 = 758,986.40 : x - Step 2: Convert to fraction form
1,331,958.44/1,838,122.80 = 758,986.40/x - Step 3: Cross multiply
1,331,958.44x = 1,838,122.80 × 758,986.40 - Step 4: Simplify right side
1,331,958.44x = 1,395,110,206,729.92 - Step 5: Solve for x
x = 1,395,110,206,729.92/1,331,958.44 - Step 6: Final answer
x = 1,047,412.72
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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.