Finding the Fourth Proportional to 554,112.99, 764,658.59 and 312,392.08
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Solution
The fourth proportional to 554,112.99, 764,658.59 and 312,392.08 is: 431,091.30
Step by Step Solution
- Step 1: Write the proportion equation
554,112.99 : 764,658.59 = 312,392.08 : x - Step 2: Convert to fraction form
554,112.99/764,658.59 = 312,392.08/x - Step 3: Cross multiply
554,112.99x = 764,658.59 × 312,392.08 - Step 4: Simplify right side
554,112.99x = 238,873,287,419.97 - Step 5: Solve for x
x = 238,873,287,419.97/554,112.99 - Step 6: Final answer
x = 431,091.30
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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.