Finding the Fourth Proportional to 513,034.24, 707,982.96 and 286,679.92
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Solution
The fourth proportional to 513,034.24, 707,982.96 and 286,679.92 is: 395,615.89
Step by Step Solution
- Step 1: Write the proportion equation
513,034.24 : 707,982.96 = 286,679.92 : x - Step 2: Convert to fraction form
513,034.24/707,982.96 = 286,679.92/x - Step 3: Cross multiply
513,034.24x = 707,982.96 × 286,679.92 - Step 4: Simplify right side
513,034.24x = 202,964,498,334.16 - Step 5: Solve for x
x = 202,964,498,334.16/513,034.24 - Step 6: Final answer
x = 395,615.89
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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.