Finding the Fourth Proportional to 644,062.87, 888,765.63 and 357,582.88
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Solution
The fourth proportional to 644,062.87, 888,765.63 and 357,582.88 is: 493,441.54
Step by Step Solution
- Step 1: Write the proportion equation
644,062.87 : 888,765.63 = 357,582.88 : x - Step 2: Convert to fraction form
644,062.87/888,765.63 = 357,582.88/x - Step 3: Cross multiply
644,062.87x = 888,765.63 × 357,582.88 - Step 4: Simplify right side
644,062.87x = 317,807,373,620.41 - Step 5: Solve for x
x = 317,807,373,620.41/644,062.87 - Step 6: Final answer
x = 493,441.54
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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.