Finding the Fourth Proportional to 403,811.80, 605,037.30 and 319,247.80
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Solution
The fourth proportional to 403,811.80, 605,037.30 and 319,247.80 is: 478,333.79
Step by Step Solution
- Step 1: Write the proportion equation
403,811.80 : 605,037.30 = 319,247.80 : x - Step 2: Convert to fraction form
403,811.80/605,037.30 = 319,247.80/x - Step 3: Cross multiply
403,811.80x = 605,037.30 × 319,247.80 - Step 4: Simplify right side
403,811.80x = 193,156,826,942.94 - Step 5: Solve for x
x = 193,156,826,942.94/403,811.80 - Step 6: Final answer
x = 478,333.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.