Finding the Fourth Proportional to 1,866,503.99, 2,576,571.69 and 1,255,011.20
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Solution
The fourth proportional to 1,866,503.99, 2,576,571.69 and 1,255,011.20 is: 1,732,450.80
Step by Step Solution
- Step 1: Write the proportion equation
1,866,503.99 : 2,576,571.69 = 1,255,011.20 : x - Step 2: Convert to fraction form
1,866,503.99/2,576,571.69 = 1,255,011.20/x - Step 3: Cross multiply
1,866,503.99x = 2,576,571.69 × 1,255,011.20 - Step 4: Simplify right side
1,866,503.99x = 3,233,626,328,552.93 - Step 5: Solve for x
x = 3,233,626,328,552.93/1,866,503.99 - Step 6: Final answer
x = 1,732,450.80
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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.