Finding the Fourth Proportional to 830,840.13, 1,246,260.21 and 199,753.95
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Solution
The fourth proportional to 830,840.13, 1,246,260.21 and 199,753.95 is: 299,630.93
Step by Step Solution
- Step 1: Write the proportion equation
830,840.13 : 1,246,260.21 = 199,753.95 : x - Step 2: Convert to fraction form
830,840.13/1,246,260.21 = 199,753.95/x - Step 3: Cross multiply
830,840.13x = 1,246,260.21 × 199,753.95 - Step 4: Simplify right side
830,840.13x = 248,945,399,675.33 - Step 5: Solve for x
x = 248,945,399,675.33/830,840.13 - Step 6: Final answer
x = 299,630.93
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Double scale
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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.