Finding the Fourth Proportional to 1,181,643.24, 1,630,672.74 and 645,110.76
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Solution
The fourth proportional to 1,181,643.24, 1,630,672.74 and 645,110.76 is: 890,255.62
Step by Step Solution
- Step 1: Write the proportion equation
1,181,643.24 : 1,630,672.74 = 645,110.76 : x - Step 2: Convert to fraction form
1,181,643.24/1,630,672.74 = 645,110.76/x - Step 3: Cross multiply
1,181,643.24x = 1,630,672.74 × 645,110.76 - Step 4: Simplify right side
1,181,643.24x = 1,051,964,530,612.68 - Step 5: Solve for x
x = 1,051,964,530,612.68/1,181,643.24 - Step 6: Final answer
x = 890,255.62
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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.