Finding the Fourth Proportional to 1,221,436.24, 1,686,455.56 and 814,497.50
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Solution
The fourth proportional to 1,221,436.24, 1,686,455.56 and 814,497.50 is: 1,124,589.06
Step by Step Solution
- Step 1: Write the proportion equation
1,221,436.24 : 1,686,455.56 = 814,497.50 : x - Step 2: Convert to fraction form
1,221,436.24/1,686,455.56 = 814,497.50/x - Step 3: Cross multiply
1,221,436.24x = 1,686,455.56 × 814,497.50 - Step 4: Simplify right side
1,221,436.24x = 1,373,613,837,481.10 - Step 5: Solve for x
x = 1,373,613,837,481.10/1,221,436.24 - Step 6: Final answer
x = 1,124,589.06
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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.