Finding the Fourth Proportional to 485,953.09, 670,748.63 and 282,069.70
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Solution
The fourth proportional to 485,953.09, 670,748.63 and 282,069.70 is: 389,333.60
Step by Step Solution
- Step 1: Write the proportion equation
485,953.09 : 670,748.63 = 282,069.70 : x - Step 2: Convert to fraction form
485,953.09/670,748.63 = 282,069.70/x - Step 3: Cross multiply
485,953.09x = 670,748.63 × 282,069.70 - Step 4: Simplify right side
485,953.09x = 189,197,864,839.51 - Step 5: Solve for x
x = 189,197,864,839.51/485,953.09 - Step 6: Final answer
x = 389,333.60
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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.