Finding the Fourth Proportional to 993,669.12, 1,490,486.40 and 245,715.12
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Solution
The fourth proportional to 993,669.12, 1,490,486.40 and 245,715.12 is: 368,568.41
Step by Step Solution
- Step 1: Write the proportion equation
993,669.12 : 1,490,486.40 = 245,715.12 : x - Step 2: Convert to fraction form
993,669.12/1,490,486.40 = 245,715.12/x - Step 3: Cross multiply
993,669.12x = 1,490,486.40 × 245,715.12 - Step 4: Simplify right side
993,669.12x = 366,235,044,634.37 - Step 5: Solve for x
x = 366,235,044,634.37/993,669.12 - Step 6: Final answer
x = 368,568.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.