Finding the Fourth Proportional to 810,272.34, 1,118,198.39 and 447,719.68
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Solution
The fourth proportional to 810,272.34, 1,118,198.39 and 447,719.68 is: 617,865.62
Step by Step Solution
- Step 1: Write the proportion equation
810,272.34 : 1,118,198.39 = 447,719.68 : x - Step 2: Convert to fraction form
810,272.34/1,118,198.39 = 447,719.68/x - Step 3: Cross multiply
810,272.34x = 1,118,198.39 × 447,719.68 - Step 4: Simplify right side
810,272.34x = 500,639,425,347.32 - Step 5: Solve for x
x = 500,639,425,347.32/810,272.34 - Step 6: Final answer
x = 617,865.62
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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.