Finding the Fourth Proportional to 2,168,671.20, 2,992,783.59 and 1,201,817.54
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Solution
The fourth proportional to 2,168,671.20, 2,992,783.59 and 1,201,817.54 is: 1,658,517.80
Step by Step Solution
- Step 1: Write the proportion equation
2,168,671.20 : 2,992,783.59 = 1,201,817.54 : x - Step 2: Convert to fraction form
2,168,671.20/2,992,783.59 = 1,201,817.54/x - Step 3: Cross multiply
2,168,671.20x = 2,992,783.59 × 1,201,817.54 - Step 4: Simplify right side
2,168,671.20x = 3,596,779,796,922.25 - Step 5: Solve for x
x = 3,596,779,796,922.25/2,168,671.20 - Step 6: Final answer
x = 1,658,517.80
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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.