Finding the Fourth Proportional to 542,563.80, 813,845.70 and 514,915.80
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Solution
The fourth proportional to 542,563.80, 813,845.70 and 514,915.80 is: 772,373.70
Step by Step Solution
- Step 1: Write the proportion equation
542,563.80 : 813,845.70 = 514,915.80 : x - Step 2: Convert to fraction form
542,563.80/813,845.70 = 514,915.80/x - Step 3: Cross multiply
542,563.80x = 813,845.70 × 514,915.80 - Step 4: Simplify right side
542,563.80x = 419,062,009,692.06 - Step 5: Solve for x
x = 419,062,009,692.06/542,563.80 - Step 6: Final answer
x = 772,373.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.