Finding the Fourth Proportional to 2,146,370.88, 2,961,345.96 and 1,286,617.44
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Solution
The fourth proportional to 2,146,370.88, 2,961,345.96 and 1,286,617.44 is: 1,775,144.92
Step by Step Solution
- Step 1: Write the proportion equation
2,146,370.88 : 2,961,345.96 = 1,286,617.44 : x - Step 2: Convert to fraction form
2,146,370.88/2,961,345.96 = 1,286,617.44/x - Step 3: Cross multiply
2,146,370.88x = 2,961,345.96 × 1,286,617.44 - Step 4: Simplify right side
2,146,370.88x = 3,810,119,358,009.54 - Step 5: Solve for x
x = 3,810,119,358,009.54/2,146,370.88 - Step 6: Final answer
x = 1,775,144.92
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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.