Finding the Fourth Proportional to 1,892,742.12, 2,612,133.18 and 1,076,980.14
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Solution
The fourth proportional to 1,892,742.12, 2,612,133.18 and 1,076,980.14 is: 1,486,317.41
Step by Step Solution
- Step 1: Write the proportion equation
1,892,742.12 : 2,612,133.18 = 1,076,980.14 : x - Step 2: Convert to fraction form
1,892,742.12/2,612,133.18 = 1,076,980.14/x - Step 3: Cross multiply
1,892,742.12x = 2,612,133.18 × 1,076,980.14 - Step 4: Simplify right side
1,892,742.12x = 2,813,215,557,895.05 - Step 5: Solve for x
x = 2,813,215,557,895.05/1,892,742.12 - Step 6: Final answer
x = 1,486,317.41
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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.