Finding the Fourth Proportional to 519,741.13, 717,242.80 and 281,277.13
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Solution
The fourth proportional to 519,741.13, 717,242.80 and 281,277.13 is: 388,162.46
Step by Step Solution
- Step 1: Write the proportion equation
519,741.13 : 717,242.80 = 281,277.13 : x - Step 2: Convert to fraction form
519,741.13/717,242.80 = 281,277.13/x - Step 3: Cross multiply
519,741.13x = 717,242.80 × 281,277.13 - Step 4: Simplify right side
519,741.13x = 201,743,992,710.95 - Step 5: Solve for x
x = 201,743,992,710.95/519,741.13 - Step 6: Final answer
x = 388,162.46
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1.5x scale
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.