Finding the Fourth Proportional to 761,081.21, 1,050,278.80 and 416,923.97
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Solution
The fourth proportional to 761,081.21, 1,050,278.80 and 416,923.97 is: 575,347.80
Step by Step Solution
- Step 1: Write the proportion equation
761,081.21 : 1,050,278.80 = 416,923.97 : x - Step 2: Convert to fraction form
761,081.21/1,050,278.80 = 416,923.97/x - Step 3: Cross multiply
761,081.21x = 1,050,278.80 × 416,923.97 - Step 4: Simplify right side
761,081.21x = 437,886,400,609.13 - Step 5: Solve for x
x = 437,886,400,609.13/761,081.21 - Step 6: Final answer
x = 575,347.80
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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.