Finding the Fourth Proportional to 1,216,595.12, 1,678,754.70 and 672,657.44
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Solution
The fourth proportional to 1,216,595.12, 1,678,754.70 and 672,657.44 is: 928,186.23
Step by Step Solution
- Step 1: Write the proportion equation
1,216,595.12 : 1,678,754.70 = 672,657.44 : x - Step 2: Convert to fraction form
1,216,595.12/1,678,754.70 = 672,657.44/x - Step 3: Cross multiply
1,216,595.12x = 1,678,754.70 × 672,657.44 - Step 4: Simplify right side
1,216,595.12x = 1,129,226,838,889.97 - Step 5: Solve for x
x = 1,129,226,838,889.97/1,216,595.12 - Step 6: Final answer
x = 928,186.23
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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.