Finding the Fourth Proportional to 1,331,298.64, 1,837,228.26 and 815,042.44
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Solution
The fourth proportional to 1,331,298.64, 1,837,228.26 and 815,042.44 is: 1,124,780.69
Step by Step Solution
- Step 1: Write the proportion equation
1,331,298.64 : 1,837,228.26 = 815,042.44 : x - Step 2: Convert to fraction form
1,331,298.64/1,837,228.26 = 815,042.44/x - Step 3: Cross multiply
1,331,298.64x = 1,837,228.26 × 815,042.44 - Step 4: Simplify right side
1,331,298.64x = 1,497,419,003,867.35 - Step 5: Solve for x
x = 1,497,419,003,867.35/1,331,298.64 - Step 6: Final answer
x = 1,124,780.69
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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.