Finding the Fourth Proportional to 790,416.36, 1,185,846.58 and 317,433.88
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Solution
The fourth proportional to 790,416.36, 1,185,846.58 and 317,433.88 is: 476,239.99
Step by Step Solution
- Step 1: Write the proportion equation
790,416.36 : 1,185,846.58 = 317,433.88 : x - Step 2: Convert to fraction form
790,416.36/1,185,846.58 = 317,433.88/x - Step 3: Cross multiply
790,416.36x = 1,185,846.58 × 317,433.88 - Step 4: Simplify right side
790,416.36x = 376,427,880,974.13 - Step 5: Solve for x
x = 376,427,880,974.13/790,416.36 - Step 6: Final answer
x = 476,239.99
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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.