Finding the Fourth Proportional to 819,842.56, 1,221,613.48 and 730,408.84
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Solution
The fourth proportional to 819,842.56, 1,221,613.48 and 730,408.84 is: 1,088,351.99
Step by Step Solution
- Step 1: Write the proportion equation
819,842.56 : 1,221,613.48 = 730,408.84 : x - Step 2: Convert to fraction form
819,842.56/1,221,613.48 = 730,408.84/x - Step 3: Cross multiply
819,842.56x = 1,221,613.48 × 730,408.84 - Step 4: Simplify right side
819,842.56x = 892,277,284,855.16 - Step 5: Solve for x
x = 892,277,284,855.16/819,842.56 - Step 6: Final answer
x = 1,088,351.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.