Finding the Fourth Proportional to 755,816.93, 1,133,718.34 and 306,430.97
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Solution
The fourth proportional to 755,816.93, 1,133,718.34 and 306,430.97 is: 459,643.59
Step by Step Solution
- Step 1: Write the proportion equation
755,816.93 : 1,133,718.34 = 306,430.97 : x - Step 2: Convert to fraction form
755,816.93/1,133,718.34 = 306,430.97/x - Step 3: Cross multiply
755,816.93x = 1,133,718.34 × 306,430.97 - Step 4: Simplify right side
755,816.93x = 347,406,410,632.99 - Step 5: Solve for x
x = 347,406,410,632.99/755,816.93 - Step 6: Final answer
x = 459,643.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.