Finding the Fourth Proportional to 1,215,391.60, 1,677,281.88 and 762,932.08
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Solution
The fourth proportional to 1,215,391.60, 1,677,281.88 and 762,932.08 is: 1,052,872.30
Step by Step Solution
- Step 1: Write the proportion equation
1,215,391.60 : 1,677,281.88 = 762,932.08 : x - Step 2: Convert to fraction form
1,215,391.60/1,677,281.88 = 762,932.08/x - Step 3: Cross multiply
1,215,391.60x = 1,677,281.88 × 762,932.08 - Step 4: Simplify right side
1,215,391.60x = 1,279,652,153,454.71 - Step 5: Solve for x
x = 1,279,652,153,454.71/1,215,391.60 - Step 6: Final answer
x = 1,052,872.30
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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.