Finding the Fourth Proportional to 379,710.75, 524,431.35 and 258,642.09
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Solution
The fourth proportional to 379,710.75, 524,431.35 and 258,642.09 is: 357,219.33
Step by Step Solution
- Step 1: Write the proportion equation
379,710.75 : 524,431.35 = 258,642.09 : x - Step 2: Convert to fraction form
379,710.75/524,431.35 = 258,642.09/x - Step 3: Cross multiply
379,710.75x = 524,431.35 × 258,642.09 - Step 4: Simplify right side
379,710.75x = 135,640,020,425.52 - Step 5: Solve for x
x = 135,640,020,425.52/379,710.75 - Step 6: Final answer
x = 357,219.33
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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.