Finding the Fourth Proportional to 499,442.12, 689,297.55 and 281,695.49
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Solution
The fourth proportional to 499,442.12, 689,297.55 and 281,695.49 is: 388,777.80
Step by Step Solution
- Step 1: Write the proportion equation
499,442.12 : 689,297.55 = 281,695.49 : x - Step 2: Convert to fraction form
499,442.12/689,297.55 = 281,695.49/x - Step 3: Cross multiply
499,442.12x = 689,297.55 × 281,695.49 - Step 4: Simplify right side
499,442.12x = 194,172,011,103.05 - Step 5: Solve for x
x = 194,172,011,103.05/499,442.12 - Step 6: Final answer
x = 388,777.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.