Finding the Fourth Proportional to 743,565.23, 1,115,345.55 and 211,086.62
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Solution
The fourth proportional to 743,565.23, 1,115,345.55 and 211,086.62 is: 316,629.28
Step by Step Solution
- Step 1: Write the proportion equation
743,565.23 : 1,115,345.55 = 211,086.62 : x - Step 2: Convert to fraction form
743,565.23/1,115,345.55 = 211,086.62/x - Step 3: Cross multiply
743,565.23x = 1,115,345.55 × 211,086.62 - Step 4: Simplify right side
743,565.23x = 235,434,522,281.54 - Step 5: Solve for x
x = 235,434,522,281.54/743,565.23 - Step 6: Final answer
x = 316,629.28
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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.