Finding the Fourth Proportional to 2,909,775.88, 4,015,615.86 and 1,620,616.84
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Solution
The fourth proportional to 2,909,775.88, 4,015,615.86 and 1,620,616.84 is: 2,236,520.94
Step by Step Solution
- Step 1: Write the proportion equation
2,909,775.88 : 4,015,615.86 = 1,620,616.84 : x - Step 2: Convert to fraction form
2,909,775.88/4,015,615.86 = 1,620,616.84/x - Step 3: Cross multiply
2,909,775.88x = 4,015,615.86 × 1,620,616.84 - Step 4: Simplify right side
2,909,775.88x = 6,507,774,685,687.08 - Step 5: Solve for x
x = 6,507,774,685,687.08/2,909,775.88 - Step 6: Final answer
x = 2,236,520.94
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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.