Finding the Fourth Proportional to 1,640,855.10, 2,457,346.05 and 798,422.70
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Solution
The fourth proportional to 1,640,855.10, 2,457,346.05 and 798,422.70 is: 1,195,718.54
Step by Step Solution
- Step 1: Write the proportion equation
1,640,855.10 : 2,457,346.05 = 798,422.70 : x - Step 2: Convert to fraction form
1,640,855.10/2,457,346.05 = 798,422.70/x - Step 3: Cross multiply
1,640,855.10x = 2,457,346.05 × 798,422.70 - Step 4: Simplify right side
1,640,855.10x = 1,962,000,868,075.33 - Step 5: Solve for x
x = 1,962,000,868,075.33/1,640,855.10 - Step 6: Final answer
x = 1,195,718.54
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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.