Finding the Fourth Proportional to 2,128,986.90, 3,192,496.20 and 930,292.20
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Solution
The fourth proportional to 2,128,986.90, 3,192,496.20 and 930,292.20 is: 1,395,008.26
Step by Step Solution
- Step 1: Write the proportion equation
2,128,986.90 : 3,192,496.20 = 930,292.20 : x - Step 2: Convert to fraction form
2,128,986.90/3,192,496.20 = 930,292.20/x - Step 3: Cross multiply
2,128,986.90x = 3,192,496.20 × 930,292.20 - Step 4: Simplify right side
2,128,986.90x = 2,969,954,313,389.64 - Step 5: Solve for x
x = 2,969,954,313,389.64/2,128,986.90 - Step 6: Final answer
x = 1,395,008.26
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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.