Finding the Fourth Proportional to 772,923.17, 1,066,632.99 and 428,811.28
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Solution
The fourth proportional to 772,923.17, 1,066,632.99 and 428,811.28 is: 591,759.02
Step by Step Solution
- Step 1: Write the proportion equation
772,923.17 : 1,066,632.99 = 428,811.28 : x - Step 2: Convert to fraction form
772,923.17/1,066,632.99 = 428,811.28/x - Step 3: Cross multiply
772,923.17x = 1,066,632.99 × 428,811.28 - Step 4: Simplify right side
772,923.17x = 457,384,257,732.13 - Step 5: Solve for x
x = 457,384,257,732.13/772,923.17 - Step 6: Final answer
x = 591,759.02
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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.