Finding the Fourth Proportional to 512,800.04, 707,649.15 and 283,353.68
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Solution
The fourth proportional to 512,800.04, 707,649.15 and 283,353.68 is: 391,019.84
Step by Step Solution
- Step 1: Write the proportion equation
512,800.04 : 707,649.15 = 283,353.68 : x - Step 2: Convert to fraction form
512,800.04/707,649.15 = 283,353.68/x - Step 3: Cross multiply
512,800.04x = 707,649.15 × 283,353.68 - Step 4: Simplify right side
512,800.04x = 200,514,990,801.37 - Step 5: Solve for x
x = 200,514,990,801.37/512,800.04 - Step 6: Final answer
x = 391,019.84
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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.