Finding the Fourth Proportional to 2,165,815.06, 2,988,848.42 and 1,198,961.49
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Solution
The fourth proportional to 2,165,815.06, 2,988,848.42 and 1,198,961.49 is: 1,654,579.94
Step by Step Solution
- Step 1: Write the proportion equation
2,165,815.06 : 2,988,848.42 = 1,198,961.49 : x - Step 2: Convert to fraction form
2,165,815.06/2,988,848.42 = 1,198,961.49/x - Step 3: Cross multiply
2,165,815.06x = 2,988,848.42 × 1,198,961.49 - Step 4: Simplify right side
2,165,815.06x = 3,583,514,155,027.35 - Step 5: Solve for x
x = 3,583,514,155,027.35/2,165,815.06 - Step 6: Final answer
x = 1,654,579.94
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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.