Finding the Fourth Proportional to 529,775.74, 731,099.64 and 288,059.94
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Solution
The fourth proportional to 529,775.74, 731,099.64 and 288,059.94 is: 397,527.68
Step by Step Solution
- Step 1: Write the proportion equation
529,775.74 : 731,099.64 = 288,059.94 : x - Step 2: Convert to fraction form
529,775.74/731,099.64 = 288,059.94/x - Step 3: Cross multiply
529,775.74x = 731,099.64 × 288,059.94 - Step 4: Simplify right side
529,775.74x = 210,600,518,432.42 - Step 5: Solve for x
x = 210,600,518,432.42/529,775.74 - Step 6: Final answer
x = 397,527.68
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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.