Finding the Fourth Proportional to 819,991.32, 1,230,342.18 and 440,469.21
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Solution
The fourth proportional to 819,991.32, 1,230,342.18 and 440,469.21 is: 660,894.63
Step by Step Solution
- Step 1: Write the proportion equation
819,991.32 : 1,230,342.18 = 440,469.21 : x - Step 2: Convert to fraction form
819,991.32/1,230,342.18 = 440,469.21/x - Step 3: Cross multiply
819,991.32x = 1,230,342.18 × 440,469.21 - Step 4: Simplify right side
819,991.32x = 541,927,854,319.82 - Step 5: Solve for x
x = 541,927,854,319.82/819,991.32 - Step 6: Final answer
x = 660,894.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.