Finding the Fourth Proportional to 993,327.30, 1,489,990.95 and 362,261.70
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Solution
The fourth proportional to 993,327.30, 1,489,990.95 and 362,261.70 is: 543,392.55
Step by Step Solution
- Step 1: Write the proportion equation
993,327.30 : 1,489,990.95 = 362,261.70 : x - Step 2: Convert to fraction form
993,327.30/1,489,990.95 = 362,261.70/x - Step 3: Cross multiply
993,327.30x = 1,489,990.95 × 362,261.70 - Step 4: Simplify right side
993,327.30x = 539,766,654,531.62 - Step 5: Solve for x
x = 539,766,654,531.62/993,327.30 - Step 6: Final answer
x = 543,392.55
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1.5x scale
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.