Finding the Fourth Proportional to 434,338.58, 598,638.52 and 288,884.05
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Solution
The fourth proportional to 434,338.58, 598,638.52 and 288,884.05 is: 398,162.01
Step by Step Solution
- Step 1: Write the proportion equation
434,338.58 : 598,638.52 = 288,884.05 : x - Step 2: Convert to fraction form
434,338.58/598,638.52 = 288,884.05/x - Step 3: Cross multiply
434,338.58x = 598,638.52 × 288,884.05 - Step 4: Simplify right side
434,338.58x = 172,937,120,143.61 - Step 5: Solve for x
x = 172,937,120,143.61/434,338.58 - Step 6: Final answer
x = 398,162.01
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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.