Finding the Fourth Proportional to 1,216,532.66, 1,678,747.28 and 672,635.75
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Solution
The fourth proportional to 1,216,532.66, 1,678,747.28 and 672,635.75 is: 928,199.85
Step by Step Solution
- Step 1: Write the proportion equation
1,216,532.66 : 1,678,747.28 = 672,635.75 : x - Step 2: Convert to fraction form
1,216,532.66/1,678,747.28 = 672,635.75/x - Step 3: Cross multiply
1,216,532.66x = 1,678,747.28 × 672,635.75 - Step 4: Simplify right side
1,216,532.66x = 1,129,185,423,986.34 - Step 5: Solve for x
x = 1,129,185,423,986.34/1,216,532.66 - Step 6: Final answer
x = 928,199.85
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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.