Finding the Fourth Proportional to 806,477.80, 1,209,716.70 and 413,261.80
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Solution
The fourth proportional to 806,477.80, 1,209,716.70 and 413,261.80 is: 619,892.70
Step by Step Solution
- Step 1: Write the proportion equation
806,477.80 : 1,209,716.70 = 413,261.80 : x - Step 2: Convert to fraction form
806,477.80/1,209,716.70 = 413,261.80/x - Step 3: Cross multiply
806,477.80x = 1,209,716.70 × 413,261.80 - Step 4: Simplify right side
806,477.80x = 499,929,700,932.06 - Step 5: Solve for x
x = 499,929,700,932.06/806,477.80 - Step 6: Final answer
x = 619,892.70
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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.