Finding the Fourth Proportional to 1,085,708.70, 1,628,563.05 and 805,772.70
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Solution
The fourth proportional to 1,085,708.70, 1,628,563.05 and 805,772.70 is: 1,208,659.05
Step by Step Solution
- Step 1: Write the proportion equation
1,085,708.70 : 1,628,563.05 = 805,772.70 : x - Step 2: Convert to fraction form
1,085,708.70/1,628,563.05 = 805,772.70/x - Step 3: Cross multiply
1,085,708.70x = 1,628,563.05 × 805,772.70 - Step 4: Simplify right side
1,085,708.70x = 1,312,251,645,918.73 - Step 5: Solve for x
x = 1,312,251,645,918.73/1,085,708.70 - Step 6: Final answer
x = 1,208,659.05
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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.