Finding the Fourth Proportional to 1,369,517.62, 1,889,932.88 and 765,905.62
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Solution
The fourth proportional to 1,369,517.62, 1,889,932.88 and 765,905.62 is: 1,056,948.95
Step by Step Solution
- Step 1: Write the proportion equation
1,369,517.62 : 1,889,932.88 = 765,905.62 : x - Step 2: Convert to fraction form
1,369,517.62/1,889,932.88 = 765,905.62/x - Step 3: Cross multiply
1,369,517.62x = 1,889,932.88 × 765,905.62 - Step 4: Simplify right side
1,369,517.62x = 1,447,510,214,214.79 - Step 5: Solve for x
x = 1,447,510,214,214.79/1,369,517.62 - Step 6: Final answer
x = 1,056,948.95
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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.