Finding the Fourth Proportional to 450,514.71, 621,460.76 and 289,188.63
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Solution
The fourth proportional to 450,514.71, 621,460.76 and 289,188.63 is: 398,920.12
Step by Step Solution
- Step 1: Write the proportion equation
450,514.71 : 621,460.76 = 289,188.63 : x - Step 2: Convert to fraction form
450,514.71/621,460.76 = 289,188.63/x - Step 3: Cross multiply
450,514.71x = 621,460.76 × 289,188.63 - Step 4: Simplify right side
450,514.71x = 179,719,384,337.22 - Step 5: Solve for x
x = 179,719,384,337.22/450,514.71 - Step 6: Final answer
x = 398,920.12
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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.