Finding the Fourth Proportional to 819,867.96, 1,230,175.59 and 420,788.97
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Solution
The fourth proportional to 819,867.96, 1,230,175.59 and 420,788.97 is: 631,375.23
Step by Step Solution
- Step 1: Write the proportion equation
819,867.96 : 1,230,175.59 = 420,788.97 : x - Step 2: Convert to fraction form
819,867.96/1,230,175.59 = 420,788.97/x - Step 3: Cross multiply
819,867.96x = 1,230,175.59 × 420,788.97 - Step 4: Simplify right side
819,867.96x = 517,644,319,435.24 - Step 5: Solve for x
x = 517,644,319,435.24/819,867.96 - Step 6: Final answer
x = 631,375.23
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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.