Finding the Fourth Proportional to 2,131,887.36, 2,942,304.60 and 1,357,270.76
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Solution
The fourth proportional to 2,131,887.36, 2,942,304.60 and 1,357,270.76 is: 1,873,224.67
Step by Step Solution
- Step 1: Write the proportion equation
2,131,887.36 : 2,942,304.60 = 1,357,270.76 : x - Step 2: Convert to fraction form
2,131,887.36/2,942,304.60 = 1,357,270.76/x - Step 3: Cross multiply
2,131,887.36x = 2,942,304.60 × 1,357,270.76 - Step 4: Simplify right side
2,131,887.36x = 3,993,503,985,881.97 - Step 5: Solve for x
x = 3,993,503,985,881.97/2,131,887.36 - Step 6: Final answer
x = 1,873,224.67
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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.