Finding the Fourth Proportional to 868,212.16, 1,198,104.80 and 481,011.68
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Solution
The fourth proportional to 868,212.16, 1,198,104.80 and 481,011.68 is: 663,780.62
Step by Step Solution
- Step 1: Write the proportion equation
868,212.16 : 1,198,104.80 = 481,011.68 : x - Step 2: Convert to fraction form
868,212.16/1,198,104.80 = 481,011.68/x - Step 3: Cross multiply
868,212.16x = 1,198,104.80 × 481,011.68 - Step 4: Simplify right side
868,212.16x = 576,302,402,664.06 - Step 5: Solve for x
x = 576,302,402,664.06/868,212.16 - Step 6: Final answer
x = 663,780.62
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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.