Finding the Fourth Proportional to 1,097,878.10, 1,514,890.99 and 689,690.84
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Solution
The fourth proportional to 1,097,878.10, 1,514,890.99 and 689,690.84 is: 951,659.79
Step by Step Solution
- Step 1: Write the proportion equation
1,097,878.10 : 1,514,890.99 = 689,690.84 : x - Step 2: Convert to fraction form
1,097,878.10/1,514,890.99 = 689,690.84/x - Step 3: Cross multiply
1,097,878.10x = 1,514,890.99 × 689,690.84 - Step 4: Simplify right side
1,097,878.10x = 1,044,806,437,625.30 - Step 5: Solve for x
x = 1,044,806,437,625.30/1,097,878.10 - Step 6: Final answer
x = 951,659.79
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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.