Finding the Fourth Proportional to 978,962.64, 1,351,049.88 and 543,420.99
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Solution
The fourth proportional to 978,962.64, 1,351,049.88 and 543,420.99 is: 749,966.17
Step by Step Solution
- Step 1: Write the proportion equation
978,962.64 : 1,351,049.88 = 543,420.99 : x - Step 2: Convert to fraction form
978,962.64/1,351,049.88 = 543,420.99/x - Step 3: Cross multiply
978,962.64x = 1,351,049.88 × 543,420.99 - Step 4: Simplify right side
978,962.64x = 734,188,863,328.98 - Step 5: Solve for x
x = 734,188,863,328.98/978,962.64 - Step 6: Final answer
x = 749,966.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.