Finding the Fourth Proportional to 1,321,102.14, 1,823,110.68 and 717,490.14
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Solution
The fourth proportional to 1,321,102.14, 1,823,110.68 and 717,490.14 is: 990,130.81
Step by Step Solution
- Step 1: Write the proportion equation
1,321,102.14 : 1,823,110.68 = 717,490.14 : x - Step 2: Convert to fraction form
1,321,102.14/1,823,110.68 = 717,490.14/x - Step 3: Cross multiply
1,321,102.14x = 1,823,110.68 × 717,490.14 - Step 4: Simplify right side
1,321,102.14x = 1,308,063,937,028.70 - Step 5: Solve for x
x = 1,308,063,937,028.70/1,321,102.14 - Step 6: Final answer
x = 990,130.81
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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.