Finding the Fourth Proportional to 775,061.28, 1,069,588.74 and 426,224.19
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Solution
The fourth proportional to 775,061.28, 1,069,588.74 and 426,224.19 is: 588,191.68
Step by Step Solution
- Step 1: Write the proportion equation
775,061.28 : 1,069,588.74 = 426,224.19 : x - Step 2: Convert to fraction form
775,061.28/1,069,588.74 = 426,224.19/x - Step 3: Cross multiply
775,061.28x = 1,069,588.74 × 426,224.19 - Step 4: Simplify right side
775,061.28x = 455,884,594,339.62 - Step 5: Solve for x
x = 455,884,594,339.62/775,061.28 - Step 6: Final answer
x = 588,191.68
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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.