Finding the Fourth Proportional to 389,404.58, 537,621.60 and 298,586.09
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Solution
The fourth proportional to 389,404.58, 537,621.60 and 298,586.09 is: 412,235.35
Step by Step Solution
- Step 1: Write the proportion equation
389,404.58 : 537,621.60 = 298,586.09 : x - Step 2: Convert to fraction form
389,404.58/537,621.60 = 298,586.09/x - Step 3: Cross multiply
389,404.58x = 537,621.60 × 298,586.09 - Step 4: Simplify right side
389,404.58x = 160,526,331,443.54 - Step 5: Solve for x
x = 160,526,331,443.54/389,404.58 - Step 6: Final answer
x = 412,235.35
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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.