Finding the Fourth Proportional to 1,310,345.12, 1,965,528.68 and 363,789.65
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Solution
The fourth proportional to 1,310,345.12, 1,965,528.68 and 363,789.65 is: 545,687.52
Step by Step Solution
- Step 1: Write the proportion equation
1,310,345.12 : 1,965,528.68 = 363,789.65 : x - Step 2: Convert to fraction form
1,310,345.12/1,965,528.68 = 363,789.65/x - Step 3: Cross multiply
1,310,345.12x = 1,965,528.68 × 363,789.65 - Step 4: Simplify right side
1,310,345.12x = 715,038,978,915.57 - Step 5: Solve for x
x = 715,038,978,915.57/1,310,345.12 - Step 6: Final answer
x = 545,687.52
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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.