Finding the Fourth Proportional to 554,016.96, 764,497.49 and 312,358.95
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Solution
The fourth proportional to 554,016.96, 764,497.49 and 312,358.95 is: 431,029.46
Step by Step Solution
- Step 1: Write the proportion equation
554,016.96 : 764,497.49 = 312,358.95 : x - Step 2: Convert to fraction form
554,016.96/764,497.49 = 312,358.95/x - Step 3: Cross multiply
554,016.96x = 764,497.49 × 312,358.95 - Step 4: Simplify right side
554,016.96x = 238,797,631,692.24 - Step 5: Solve for x
x = 238,797,631,692.24/554,016.96 - Step 6: Final answer
x = 431,029.46
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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.