Finding the Fourth Proportional to 515,063.57, 710,701.10 and 343,238.05
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Solution
The fourth proportional to 515,063.57, 710,701.10 and 343,238.05 is: 473,610.79
Step by Step Solution
- Step 1: Write the proportion equation
515,063.57 : 710,701.10 = 343,238.05 : x - Step 2: Convert to fraction form
515,063.57/710,701.10 = 343,238.05/x - Step 3: Cross multiply
515,063.57x = 710,701.10 × 343,238.05 - Step 4: Simplify right side
515,063.57x = 243,939,662,086.90 - Step 5: Solve for x
x = 243,939,662,086.90/515,063.57 - Step 6: Final answer
x = 473,610.79
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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.