Finding the Fourth Proportional to 420,613.96, 580,425.30 and 229,590.44
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Solution
The fourth proportional to 420,613.96, 580,425.30 and 229,590.44 is: 316,822.82
Step by Step Solution
- Step 1: Write the proportion equation
420,613.96 : 580,425.30 = 229,590.44 : x - Step 2: Convert to fraction form
420,613.96/580,425.30 = 229,590.44/x - Step 3: Cross multiply
420,613.96x = 580,425.30 × 229,590.44 - Step 4: Simplify right side
420,613.96x = 133,260,100,014.13 - Step 5: Solve for x
x = 133,260,100,014.13/420,613.96 - Step 6: Final answer
x = 316,822.82
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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.