Finding the Fourth Proportional to 1,515,215.36, 2,091,041.26 and 826,931.48
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Solution
The fourth proportional to 1,515,215.36, 2,091,041.26 and 826,931.48 is: 1,141,189.49
Step by Step Solution
- Step 1: Write the proportion equation
1,515,215.36 : 2,091,041.26 = 826,931.48 : x - Step 2: Convert to fraction form
1,515,215.36/2,091,041.26 = 826,931.48/x - Step 3: Cross multiply
1,515,215.36x = 2,091,041.26 × 826,931.48 - Step 4: Simplify right side
1,515,215.36x = 1,729,147,843,112.44 - Step 5: Solve for x
x = 1,729,147,843,112.44/1,515,215.36 - Step 6: Final answer
x = 1,141,189.49
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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.