Finding the Fourth Proportional to 2,765,863.80, 4,148,795.70 and 2,205,991.80
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Solution
The fourth proportional to 2,765,863.80, 4,148,795.70 and 2,205,991.80 is: 3,308,987.70
Step by Step Solution
- Step 1: Write the proportion equation
2,765,863.80 : 4,148,795.70 = 2,205,991.80 : x - Step 2: Convert to fraction form
2,765,863.80/4,148,795.70 = 2,205,991.80/x - Step 3: Cross multiply
2,765,863.80x = 4,148,795.70 × 2,205,991.80 - Step 4: Simplify right side
2,765,863.80x = 9,152,209,294,075.26 - Step 5: Solve for x
x = 9,152,209,294,075.26/2,765,863.80 - Step 6: Final answer
x = 3,308,987.70
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1.5x scale
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.