Finding the Fourth Proportional to 810,163.11, 1,117,991.04 and 465,973.05
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Solution
The fourth proportional to 810,163.11, 1,117,991.04 and 465,973.05 is: 643,023.22
Step by Step Solution
- Step 1: Write the proportion equation
810,163.11 : 1,117,991.04 = 465,973.05 : x - Step 2: Convert to fraction form
810,163.11/1,117,991.04 = 465,973.05/x - Step 3: Cross multiply
810,163.11x = 1,117,991.04 × 465,973.05 - Step 4: Simplify right side
810,163.11x = 520,953,694,781.47 - Step 5: Solve for x
x = 520,953,694,781.47/810,163.11 - Step 6: Final answer
x = 643,023.22
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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.