Finding the Fourth Proportional to 809,948.09, 1,117,633.14 and 447,350.33
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Solution
The fourth proportional to 809,948.09, 1,117,633.14 and 447,350.33 is: 617,290.86
Step by Step Solution
- Step 1: Write the proportion equation
809,948.09 : 1,117,633.14 = 447,350.33 : x - Step 2: Convert to fraction form
809,948.09/1,117,633.14 = 447,350.33/x - Step 3: Cross multiply
809,948.09x = 1,117,633.14 × 447,350.33 - Step 4: Simplify right side
809,948.09x = 499,973,556,792.02 - Step 5: Solve for x
x = 499,973,556,792.02/809,948.09 - Step 6: Final answer
x = 617,290.86
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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.