Finding the Fourth Proportional to 1,321,214.36, 1,823,265.79 and 717,606.68
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Solution
The fourth proportional to 1,321,214.36, 1,823,265.79 and 717,606.68 is: 990,291.77
Step by Step Solution
- Step 1: Write the proportion equation
1,321,214.36 : 1,823,265.79 = 717,606.68 : x - Step 2: Convert to fraction form
1,321,214.36/1,823,265.79 = 717,606.68/x - Step 3: Cross multiply
1,321,214.36x = 1,823,265.79 × 717,606.68 - Step 4: Simplify right side
1,321,214.36x = 1,308,387,699,409.13 - Step 5: Solve for x
x = 1,308,387,699,409.13/1,321,214.36 - Step 6: Final answer
x = 990,291.77
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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.