Finding the Fourth Proportional to 1,443,318.21, 2,163,482.48 and 1,187,915.15
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Solution
The fourth proportional to 1,443,318.21, 2,163,482.48 and 1,187,915.15 is: 1,780,642.42
Step by Step Solution
- Step 1: Write the proportion equation
1,443,318.21 : 2,163,482.48 = 1,187,915.15 : x - Step 2: Convert to fraction form
1,443,318.21/2,163,482.48 = 1,187,915.15/x - Step 3: Cross multiply
1,443,318.21x = 2,163,482.48 × 1,187,915.15 - Step 4: Simplify right side
1,443,318.21x = 2,570,033,623,130.07 - Step 5: Solve for x
x = 2,570,033,623,130.07/1,443,318.21 - Step 6: Final answer
x = 1,780,642.42
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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.