Finding the Fourth Proportional to 1,101,979.58, 1,652,327.12 and 427,272.66
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Solution
The fourth proportional to 1,101,979.58, 1,652,327.12 and 427,272.66 is: 640,659.97
Step by Step Solution
- Step 1: Write the proportion equation
1,101,979.58 : 1,652,327.12 = 427,272.66 : x - Step 2: Convert to fraction form
1,101,979.58/1,652,327.12 = 427,272.66/x - Step 3: Cross multiply
1,101,979.58x = 1,652,327.12 × 427,272.66 - Step 4: Simplify right side
1,101,979.58x = 705,994,203,752.54 - Step 5: Solve for x
x = 705,994,203,752.54/1,101,979.58 - Step 6: Final answer
x = 640,659.97
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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.