Finding the Fourth Proportional to 821,848.90, 1,134,148.18 and 459,272.68
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Solution
The fourth proportional to 821,848.90, 1,134,148.18 and 459,272.68 is: 633,794.45
Step by Step Solution
- Step 1: Write the proportion equation
821,848.90 : 1,134,148.18 = 459,272.68 : x - Step 2: Convert to fraction form
821,848.90/1,134,148.18 = 459,272.68/x - Step 3: Cross multiply
821,848.90x = 1,134,148.18 × 459,272.68 - Step 4: Simplify right side
821,848.90x = 520,883,274,145.72 - Step 5: Solve for x
x = 520,883,274,145.72/821,848.90 - Step 6: Final answer
x = 633,794.45
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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.