Finding the Fourth Proportional to 1,253,464.95, 1,728,067.84 and 860,985.93
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Solution
The fourth proportional to 1,253,464.95, 1,728,067.84 and 860,985.93 is: 1,186,983.41
Step by Step Solution
- Step 1: Write the proportion equation
1,253,464.95 : 1,728,067.84 = 860,985.93 : x - Step 2: Convert to fraction form
1,253,464.95/1,728,067.84 = 860,985.93/x - Step 3: Cross multiply
1,253,464.95x = 1,728,067.84 × 860,985.93 - Step 4: Simplify right side
1,253,464.95x = 1,487,842,096,325.49 - Step 5: Solve for x
x = 1,487,842,096,325.49/1,253,464.95 - Step 6: Final answer
x = 1,186,983.41
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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.