Finding the Fourth Proportional to 611,596.20, 917,394.30 and 442,759.80
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Solution
The fourth proportional to 611,596.20, 917,394.30 and 442,759.80 is: 664,139.70
Step by Step Solution
- Step 1: Write the proportion equation
611,596.20 : 917,394.30 = 442,759.80 : x - Step 2: Convert to fraction form
611,596.20/917,394.30 = 442,759.80/x - Step 3: Cross multiply
611,596.20x = 917,394.30 × 442,759.80 - Step 4: Simplify right side
611,596.20x = 406,185,316,789.14 - Step 5: Solve for x
x = 406,185,316,789.14/611,596.20 - Step 6: Final answer
x = 664,139.70
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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.