Finding the Fourth Proportional to 859,474.77, 1,288,410.79 and 290,457.94
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Solution
The fourth proportional to 859,474.77, 1,288,410.79 and 290,457.94 is: 435,416.09
Step by Step Solution
- Step 1: Write the proportion equation
859,474.77 : 1,288,410.79 = 290,457.94 : x - Step 2: Convert to fraction form
859,474.77/1,288,410.79 = 290,457.94/x - Step 3: Cross multiply
859,474.77x = 1,288,410.79 × 290,457.94 - Step 4: Simplify right side
859,474.77x = 374,229,143,937.17 - Step 5: Solve for x
x = 374,229,143,937.17/859,474.77 - Step 6: Final answer
x = 435,416.09
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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.