Finding the Fourth Proportional to 608,642.66, 839,775.97 and 393,523.88
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Solution
The fourth proportional to 608,642.66, 839,775.97 and 393,523.88 is: 542,965.38
Step by Step Solution
- Step 1: Write the proportion equation
608,642.66 : 839,775.97 = 393,523.88 : x - Step 2: Convert to fraction form
608,642.66/839,775.97 = 393,523.88/x - Step 3: Cross multiply
608,642.66x = 839,775.97 × 393,523.88 - Step 4: Simplify right side
608,642.66x = 330,471,894,338.19 - Step 5: Solve for x
x = 330,471,894,338.19/608,642.66 - Step 6: Final answer
x = 542,965.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.