Finding the Fourth Proportional to 830,579.30, 1,245,972.70 and 325,074.92
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Solution
The fourth proportional to 830,579.30, 1,245,972.70 and 325,074.92 is: 487,652.99
Step by Step Solution
- Step 1: Write the proportion equation
830,579.30 : 1,245,972.70 = 325,074.92 : x - Step 2: Convert to fraction form
830,579.30/1,245,972.70 = 325,074.92/x - Step 3: Cross multiply
830,579.30x = 1,245,972.70 × 325,074.92 - Step 4: Simplify right side
830,579.30x = 405,034,475,774.68 - Step 5: Solve for x
x = 405,034,475,774.68/830,579.30 - Step 6: Final answer
x = 487,652.99
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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.