Finding the Fourth Proportional to 1,779,676.38, 2,456,169.18 and 1,005,339.84
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Solution
The fourth proportional to 1,779,676.38, 2,456,169.18 and 1,005,339.84 is: 1,387,490.87
Step by Step Solution
- Step 1: Write the proportion equation
1,779,676.38 : 2,456,169.18 = 1,005,339.84 : x - Step 2: Convert to fraction form
1,779,676.38/2,456,169.18 = 1,005,339.84/x - Step 3: Cross multiply
1,779,676.38x = 2,456,169.18 × 1,005,339.84 - Step 4: Simplify right side
1,779,676.38x = 2,469,284,730,434.13 - Step 5: Solve for x
x = 2,469,284,730,434.13/1,779,676.38 - Step 6: Final answer
x = 1,387,490.87
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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.