Finding the Fourth Proportional to 608,308.93, 839,187.30 and 393,518.26
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Solution
The fourth proportional to 608,308.93, 839,187.30 and 393,518.26 is: 542,874.70
Step by Step Solution
- Step 1: Write the proportion equation
608,308.93 : 839,187.30 = 393,518.26 : x - Step 2: Convert to fraction form
608,308.93/839,187.30 = 393,518.26/x - Step 3: Cross multiply
608,308.93x = 839,187.30 × 393,518.26 - Step 4: Simplify right side
608,308.93x = 330,235,526,110.10 - Step 5: Solve for x
x = 330,235,526,110.10/608,308.93 - Step 6: Final answer
x = 542,874.70
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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.