Finding the Fourth Proportional to 529,306.14, 730,445.46 and 287,590.68
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Solution
The fourth proportional to 529,306.14, 730,445.46 and 287,590.68 is: 396,876.76
Step by Step Solution
- Step 1: Write the proportion equation
529,306.14 : 730,445.46 = 287,590.68 : x - Step 2: Convert to fraction form
529,306.14/730,445.46 = 287,590.68/x - Step 3: Cross multiply
529,306.14x = 730,445.46 × 287,590.68 - Step 4: Simplify right side
529,306.14x = 210,069,306,544.31 - Step 5: Solve for x
x = 210,069,306,544.31/529,306.14 - Step 6: Final answer
x = 396,876.76
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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.