Finding the Fourth Proportional to 408,775.68, 617,002.80 and 408,775.68
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Solution
The fourth proportional to 408,775.68, 617,002.80 and 408,775.68 is: 617,002.80
Step by Step Solution
- Step 1: Write the proportion equation
408,775.68 : 617,002.80 = 408,775.68 : x - Step 2: Convert to fraction form
408,775.68/617,002.80 = 408,775.68/x - Step 3: Cross multiply
408,775.68x = 617,002.80 × 408,775.68 - Step 4: Simplify right side
408,775.68x = 252,215,739,131.90 - Step 5: Solve for x
x = 252,215,739,131.90/408,775.68 - Step 6: Final answer
x = 617,002.80
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.