Finding the Fourth Proportional to 861,936.97, 1,292,905.44 and 406,422.18
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Solution
The fourth proportional to 861,936.97, 1,292,905.44 and 406,422.18 is: 609,633.26
Step by Step Solution
- Step 1: Write the proportion equation
861,936.97 : 1,292,905.44 = 406,422.18 : x - Step 2: Convert to fraction form
861,936.97/1,292,905.44 = 406,422.18/x - Step 3: Cross multiply
861,936.97x = 1,292,905.44 × 406,422.18 - Step 4: Simplify right side
861,936.97x = 525,465,447,458.66 - Step 5: Solve for x
x = 525,465,447,458.66/861,936.97 - Step 6: Final answer
x = 609,633.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.