Finding the Fourth Proportional to 1,553,181.67, 2,143,370.26 and 855,449.08
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Solution
The fourth proportional to 1,553,181.67, 2,143,370.26 and 855,449.08 is: 1,180,508.47
Step by Step Solution
- Step 1: Write the proportion equation
1,553,181.67 : 2,143,370.26 = 855,449.08 : x - Step 2: Convert to fraction form
1,553,181.67/2,143,370.26 = 855,449.08/x - Step 3: Cross multiply
1,553,181.67x = 2,143,370.26 × 855,449.08 - Step 4: Simplify right side
1,553,181.67x = 1,833,544,117,016.36 - Step 5: Solve for x
x = 1,833,544,117,016.36/1,553,181.67 - Step 6: Final answer
x = 1,180,508.47
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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.