Finding the Fourth Proportional to 509,037.21, 702,393.12 and 294,135.57
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Solution
The fourth proportional to 509,037.21, 702,393.12 and 294,135.57 is: 405,861.88
Step by Step Solution
- Step 1: Write the proportion equation
509,037.21 : 702,393.12 = 294,135.57 : x - Step 2: Convert to fraction form
509,037.21/702,393.12 = 294,135.57/x - Step 3: Cross multiply
509,037.21x = 702,393.12 × 294,135.57 - Step 4: Simplify right side
509,037.21x = 206,598,800,715.28 - Step 5: Solve for x
x = 206,598,800,715.28/509,037.21 - Step 6: Final answer
x = 405,861.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.