Finding the Fourth Proportional to 492,043.74, 679,043.02 and 274,266.68
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Solution
The fourth proportional to 492,043.74, 679,043.02 and 274,266.68 is: 378,500.65
Step by Step Solution
- Step 1: Write the proportion equation
492,043.74 : 679,043.02 = 274,266.68 : x - Step 2: Convert to fraction form
492,043.74/679,043.02 = 274,266.68/x - Step 3: Cross multiply
492,043.74x = 679,043.02 × 274,266.68 - Step 4: Simplify right side
492,043.74x = 186,238,874,672.57 - Step 5: Solve for x
x = 186,238,874,672.57/492,043.74 - Step 6: Final answer
x = 378,500.65
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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.