Finding the Fourth Proportional to 554,043.99, 764,592.40 and 312,326.57
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Solution
The fourth proportional to 554,043.99, 764,592.40 and 312,326.57 is: 431,017.26
Step by Step Solution
- Step 1: Write the proportion equation
554,043.99 : 764,592.40 = 312,326.57 : x - Step 2: Convert to fraction form
554,043.99/764,592.40 = 312,326.57/x - Step 3: Cross multiply
554,043.99x = 764,592.40 × 312,326.57 - Step 4: Simplify right side
554,043.99x = 238,802,522,527.54 - Step 5: Solve for x
x = 238,802,522,527.54/554,043.99 - Step 6: Final answer
x = 431,017.26
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1.5x scale
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.