Finding the Fourth Proportional to 1,318,621.26, 1,819,698.28 and 715,009.26
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Solution
The fourth proportional to 1,318,621.26, 1,819,698.28 and 715,009.26 is: 986,713.29
Step by Step Solution
- Step 1: Write the proportion equation
1,318,621.26 : 1,819,698.28 = 715,009.26 : x - Step 2: Convert to fraction form
1,318,621.26/1,819,698.28 = 715,009.26/x - Step 3: Cross multiply
1,318,621.26x = 1,819,698.28 × 715,009.26 - Step 4: Simplify right side
1,318,621.26x = 1,301,101,120,606.07 - Step 5: Solve for x
x = 1,301,101,120,606.07/1,318,621.26 - Step 6: Final answer
x = 986,713.29
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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.