Finding the Fourth Proportional to 759,867.19, 1,048,649.63 and 420,335.44
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Solution
The fourth proportional to 759,867.19, 1,048,649.63 and 420,335.44 is: 580,081.11
Step by Step Solution
- Step 1: Write the proportion equation
759,867.19 : 1,048,649.63 = 420,335.44 : x - Step 2: Convert to fraction form
759,867.19/1,048,649.63 = 420,335.44/x - Step 3: Cross multiply
759,867.19x = 1,048,649.63 × 420,335.44 - Step 4: Simplify right side
759,867.19x = 440,784,598,908.59 - Step 5: Solve for x
x = 440,784,598,908.59/759,867.19 - Step 6: Final answer
x = 580,081.11
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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.