Finding the Fourth Proportional to 1,036,129.97, 1,555,080.65 and 405,486.65
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Solution
The fourth proportional to 1,036,129.97, 1,555,080.65 and 405,486.65 is: 608,576.58
Step by Step Solution
- Step 1: Write the proportion equation
1,036,129.97 : 1,555,080.65 = 405,486.65 : x - Step 2: Convert to fraction form
1,036,129.97/1,555,080.65 = 405,486.65/x - Step 3: Cross multiply
1,036,129.97x = 1,555,080.65 × 405,486.65 - Step 4: Simplify right side
1,036,129.97x = 630,564,433,445.49 - Step 5: Solve for x
x = 630,564,433,445.49/1,036,129.97 - Step 6: Final answer
x = 608,576.58
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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.