Finding the Fourth Proportional to 1,125,398.94, 1,553,198.38 and 641,853.24
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Solution
The fourth proportional to 1,125,398.94, 1,553,198.38 and 641,853.24 is: 885,841.79
Step by Step Solution
- Step 1: Write the proportion equation
1,125,398.94 : 1,553,198.38 = 641,853.24 : x - Step 2: Convert to fraction form
1,125,398.94/1,553,198.38 = 641,853.24/x - Step 3: Cross multiply
1,125,398.94x = 1,553,198.38 × 641,853.24 - Step 4: Simplify right side
1,125,398.94x = 996,925,412,565.75 - Step 5: Solve for x
x = 996,925,412,565.75/1,125,398.94 - Step 6: Final answer
x = 885,841.79
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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.