Finding the Fourth Proportional to 2,171,247.12, 2,996,263.08 and 1,253,445.18
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Solution
The fourth proportional to 2,171,247.12, 2,996,263.08 and 1,253,445.18 is: 1,729,720.90
Step by Step Solution
- Step 1: Write the proportion equation
2,171,247.12 : 2,996,263.08 = 1,253,445.18 : x - Step 2: Convert to fraction form
2,171,247.12/2,996,263.08 = 1,253,445.18/x - Step 3: Cross multiply
2,171,247.12x = 2,996,263.08 × 1,253,445.18 - Step 4: Simplify right side
2,171,247.12x = 3,755,651,515,637.95 - Step 5: Solve for x
x = 3,755,651,515,637.95/2,171,247.12 - Step 6: Final answer
x = 1,729,720.90
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1.5x scale
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.