Finding the Fourth Proportional to 1,288,346.60, 1,930,964.70 and 656,935.40
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Solution
The fourth proportional to 1,288,346.60, 1,930,964.70 and 656,935.40 is: 984,610.09
Step by Step Solution
- Step 1: Write the proportion equation
1,288,346.60 : 1,930,964.70 = 656,935.40 : x - Step 2: Convert to fraction form
1,288,346.60/1,930,964.70 = 656,935.40/x - Step 3: Cross multiply
1,288,346.60x = 1,930,964.70 × 656,935.40 - Step 4: Simplify right side
1,288,346.60x = 1,268,519,067,580.38 - Step 5: Solve for x
x = 1,268,519,067,580.38/1,288,346.60 - Step 6: Final answer
x = 984,610.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.