Finding the Fourth Proportional to 790,379.36, 1,185,790.98 and 317,396.84
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Solution
The fourth proportional to 790,379.36, 1,185,790.98 and 317,396.84 is: 476,184.39
Step by Step Solution
- Step 1: Write the proportion equation
790,379.36 : 1,185,790.98 = 317,396.84 : x - Step 2: Convert to fraction form
790,379.36/1,185,790.98 = 317,396.84/x - Step 3: Cross multiply
790,379.36x = 1,185,790.98 × 317,396.84 - Step 4: Simplify right side
790,379.36x = 376,366,309,952.50 - Step 5: Solve for x
x = 376,366,309,952.50/790,379.36 - Step 6: Final answer
x = 476,184.39
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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.