Finding the Fourth Proportional to 1,645,062.40, 2,270,170.56 and 919,901.80
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Solution
The fourth proportional to 1,645,062.40, 2,270,170.56 and 919,901.80 is: 1,269,455.79
Step by Step Solution
- Step 1: Write the proportion equation
1,645,062.40 : 2,270,170.56 = 919,901.80 : x - Step 2: Convert to fraction form
1,645,062.40/2,270,170.56 = 919,901.80/x - Step 3: Cross multiply
1,645,062.40x = 2,270,170.56 × 919,901.80 - Step 4: Simplify right side
1,645,062.40x = 2,088,333,984,451.01 - Step 5: Solve for x
x = 2,088,333,984,451.01/1,645,062.40 - Step 6: Final answer
x = 1,269,455.79
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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.