Finding the Fourth Proportional to 1,422,326.40, 2,128,305.60 and 890,102.40
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Solution
The fourth proportional to 1,422,326.40, 2,128,305.60 and 890,102.40 is: 1,331,909.41
Step by Step Solution
- Step 1: Write the proportion equation
1,422,326.40 : 2,128,305.60 = 890,102.40 : x - Step 2: Convert to fraction form
1,422,326.40/2,128,305.60 = 890,102.40/x - Step 3: Cross multiply
1,422,326.40x = 2,128,305.60 × 890,102.40 - Step 4: Simplify right side
1,422,326.40x = 1,894,409,922,493.44 - Step 5: Solve for x
x = 1,894,409,922,493.44/1,422,326.40 - Step 6: Final answer
x = 1,331,909.41
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.