Finding the Fourth Proportional to 644,074.64, 888,850.77 and 357,594.75
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Solution
The fourth proportional to 644,074.64, 888,850.77 and 357,594.75 is: 493,496.17
Step by Step Solution
- Step 1: Write the proportion equation
644,074.64 : 888,850.77 = 357,594.75 : x - Step 2: Convert to fraction form
644,074.64/888,850.77 = 357,594.75/x - Step 3: Cross multiply
644,074.64x = 888,850.77 × 357,594.75 - Step 4: Simplify right side
644,074.64x = 317,848,367,544.48 - Step 5: Solve for x
x = 317,848,367,544.48/644,074.64 - Step 6: Final answer
x = 493,496.17
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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.