Finding the Fourth Proportional to 861,880.14, 1,292,820.18 and 270,904.14
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Solution
The fourth proportional to 861,880.14, 1,292,820.18 and 270,904.14 is: 406,356.20
Step by Step Solution
- Step 1: Write the proportion equation
861,880.14 : 1,292,820.18 = 270,904.14 : x - Step 2: Convert to fraction form
861,880.14/1,292,820.18 = 270,904.14/x - Step 3: Cross multiply
861,880.14x = 1,292,820.18 × 270,904.14 - Step 4: Simplify right side
861,880.14x = 350,230,339,037.55 - Step 5: Solve for x
x = 350,230,339,037.55/861,880.14 - Step 6: Final answer
x = 406,356.20
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1.5x scale
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.