Finding the Fourth Proportional to 428,711.74, 591,579.58 and 247,482.06
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Solution
The fourth proportional to 428,711.74, 591,579.58 and 247,482.06 is: 341,500.63
Step by Step Solution
- Step 1: Write the proportion equation
428,711.74 : 591,579.58 = 247,482.06 : x - Step 2: Convert to fraction form
428,711.74/591,579.58 = 247,482.06/x - Step 3: Cross multiply
428,711.74x = 591,579.58 × 247,482.06 - Step 4: Simplify right side
428,711.74x = 146,405,328,917.03 - Step 5: Solve for x
x = 146,405,328,917.03/428,711.74 - Step 6: Final answer
x = 341,500.63
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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.