Finding the Fourth Proportional to 2,887,747.12, 3,985,312.36 and 1,647,384.76
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Solution
The fourth proportional to 2,887,747.12, 3,985,312.36 and 1,647,384.76 is: 2,273,517.23
Step by Step Solution
- Step 1: Write the proportion equation
2,887,747.12 : 3,985,312.36 = 1,647,384.76 : x - Step 2: Convert to fraction form
2,887,747.12/3,985,312.36 = 1,647,384.76/x - Step 3: Cross multiply
2,887,747.12x = 3,985,312.36 × 1,647,384.76 - Step 4: Simplify right side
2,887,747.12x = 6,565,342,831,621.89 - Step 5: Solve for x
x = 6,565,342,831,621.89/2,887,747.12 - Step 6: Final answer
x = 2,273,517.23
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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.