Finding the Fourth Proportional to 754,658.13, 1,131,987.20 and 193,692.63
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Solution
The fourth proportional to 754,658.13, 1,131,987.20 and 193,692.63 is: 290,538.95
Step by Step Solution
- Step 1: Write the proportion equation
754,658.13 : 1,131,987.20 = 193,692.63 : x - Step 2: Convert to fraction form
754,658.13/1,131,987.20 = 193,692.63/x - Step 3: Cross multiply
754,658.13x = 1,131,987.20 × 193,692.63 - Step 4: Simplify right side
754,658.13x = 219,257,576,925.87 - Step 5: Solve for x
x = 219,257,576,925.87/754,658.13 - Step 6: Final answer
x = 290,538.95
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Similar ratio
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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.