Finding the Fourth Proportional to 531,280.81, 733,146.05 and 289,558.18
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Solution
The fourth proportional to 531,280.81, 733,146.05 and 289,558.18 is: 399,578.59
Step by Step Solution
- Step 1: Write the proportion equation
531,280.81 : 733,146.05 = 289,558.18 : x - Step 2: Convert to fraction form
531,280.81/733,146.05 = 289,558.18/x - Step 3: Cross multiply
531,280.81x = 733,146.05 × 289,558.18 - Step 4: Simplify right side
531,280.81x = 212,288,435,912.19 - Step 5: Solve for x
x = 212,288,435,912.19/531,280.81 - Step 6: Final answer
x = 399,578.59
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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.