Finding the Fourth Proportional to 830,719.40, 1,246,079.09 and 262,158.12
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Solution
The fourth proportional to 830,719.40, 1,246,079.09 and 262,158.12 is: 393,237.18
Step by Step Solution
- Step 1: Write the proportion equation
830,719.40 : 1,246,079.09 = 262,158.12 : x - Step 2: Convert to fraction form
830,719.40/1,246,079.09 = 262,158.12/x - Step 3: Cross multiply
830,719.40x = 1,246,079.09 × 262,158.12 - Step 4: Simplify right side
830,719.40x = 326,669,752,261.11 - Step 5: Solve for x
x = 326,669,752,261.11/830,719.40 - Step 6: Final answer
x = 393,237.18
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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.