Finding the Fourth Proportional to 938,259.84, 1,407,390.72 and 228,287.84
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Solution
The fourth proportional to 938,259.84, 1,407,390.72 and 228,287.84 is: 342,431.99
Step by Step Solution
- Step 1: Write the proportion equation
938,259.84 : 1,407,390.72 = 228,287.84 : x - Step 2: Convert to fraction form
938,259.84/1,407,390.72 = 228,287.84/x - Step 3: Cross multiply
938,259.84x = 1,407,390.72 × 228,287.84 - Step 4: Simplify right side
938,259.84x = 321,290,187,504.85 - Step 5: Solve for x
x = 321,290,187,504.85/938,259.84 - Step 6: Final answer
x = 342,431.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.