Finding the Fourth Proportional to 674,918.21, 1,012,874.66 and 319,930.85
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Solution
The fourth proportional to 674,918.21, 1,012,874.66 and 319,930.85 is: 480,132.02
Step by Step Solution
- Step 1: Write the proportion equation
674,918.21 : 1,012,874.66 = 319,930.85 : x - Step 2: Convert to fraction form
674,918.21/1,012,874.66 = 319,930.85/x - Step 3: Cross multiply
674,918.21x = 1,012,874.66 × 319,930.85 - Step 4: Simplify right side
674,918.21x = 324,049,844,253.23 - Step 5: Solve for x
x = 324,049,844,253.23/674,918.21 - Step 6: Final answer
x = 480,132.02
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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.