Finding the Fourth Proportional to 2,692,717.12, 3,715,949.40 and 1,485,493.12
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Solution
The fourth proportional to 2,692,717.12, 3,715,949.40 and 1,485,493.12 is: 2,049,980.38
Step by Step Solution
- Step 1: Write the proportion equation
2,692,717.12 : 3,715,949.40 = 1,485,493.12 : x - Step 2: Convert to fraction form
2,692,717.12/3,715,949.40 = 1,485,493.12/x - Step 3: Cross multiply
2,692,717.12x = 3,715,949.40 × 1,485,493.12 - Step 4: Simplify right side
2,692,717.12x = 5,520,017,267,968.13 - Step 5: Solve for x
x = 5,520,017,267,968.13/2,692,717.12 - Step 6: Final answer
x = 2,049,980.38
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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.