Finding the Fourth Proportional to 462,609.58, 638,205.70 and 309,697.02
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Solution
The fourth proportional to 462,609.58, 638,205.70 and 309,697.02 is: 427,251.00
Step by Step Solution
- Step 1: Write the proportion equation
462,609.58 : 638,205.70 = 309,697.02 : x - Step 2: Convert to fraction form
462,609.58/638,205.70 = 309,697.02/x - Step 3: Cross multiply
462,609.58x = 638,205.70 × 309,697.02 - Step 4: Simplify right side
462,609.58x = 197,650,403,437.01 - Step 5: Solve for x
x = 197,650,403,437.01/462,609.58 - Step 6: Final answer
x = 427,251.00
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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.