Finding the Fourth Proportional to 858,794.24, 1,286,229.40 and 409,830.40
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Solution
The fourth proportional to 858,794.24, 1,286,229.40 and 409,830.40 is: 613,809.32
Step by Step Solution
- Step 1: Write the proportion equation
858,794.24 : 1,286,229.40 = 409,830.40 : x - Step 2: Convert to fraction form
858,794.24/1,286,229.40 = 409,830.40/x - Step 3: Cross multiply
858,794.24x = 1,286,229.40 × 409,830.40 - Step 4: Simplify right side
858,794.24x = 527,135,909,493.76 - Step 5: Solve for x
x = 527,135,909,493.76/858,794.24 - Step 6: Final answer
x = 613,809.32
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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.